• Science
    Quotes
  • What's
    New
  • Science
    Stories
  • Chemistry
    Stories
  • Perpetual
    Motion
  • Newsletter
    Sign-up
  • Search
    search icon
  • Feedback
    email icon
  • Home
  • Text Menu
  • Science Store
  • News
  • Wall Calendar
  • Survey
  • Privacy
  • Terms of Use
TODAYINSCI ®

Find science on your birthday
TODAY IN SCIENCE HISTORY
Follow @todayinsci
Home > Category Index for Science Quotations > Category Index R > Category: Role

Role Quotes (13 quotes)

Les Leucocytes Et L'esprit De Sacrif1ce. — Il semble, d'après les recherches de De Bruyne (Phagocytose, 1895) et de ceux qui le citent, que les leucocytes des Lamellibranches — probablement lorsqu'ils ont phagocyté, qu'ils se sont chargés de résidus et de déchets, qu'ils ont, en un mot, accompli leur rôle et bien fait leur devoir — sortent du corps de l'animal et vont mourir dans le milieu ambiant. Ils se sacrifient. Après avoir si bien servi l'organisme par leur activité, ils le servent encore par leur mort en faisant place aux cellules nouvelles, plus jeunes.
N'est-ce pas la parfaite image du désintéressement le plus noble, et n'y a-t-il point là un exemple et un modèle? Il faut s'en inspirer: comme eux, nous sommes les unités d'un grand corps social; comme eux, nous pouvons le servir et envisager la mort avec sérénité, en subordonnant notre conscience individuelle à la conscience collective.
(30 Jan 1896)
Leukocytes and The Spirit Of Sacrifice. - It seems, according to research by De Bruyne (Phagocytosis, 1885) and those who quote it, that leukocytes of Lamellibranches [bivalves] - likely when they have phagocytized [ingested bacteria], as they become residues and waste, they have, in short, performed their role well and done their duty - leave the body of the animal and will die in the environment. They sacrifice themselves. Having so well served the body by their activities, they still serve in their death by making room for new younger cells.
Isn't this the perfect image of the noblest selflessness, and thereby presents an example and a model? It should be inspiring: like them, we are the units of a great social body, like them, we can serve and contemplate death with equanimity, subordinating our individual consciousness to collective consciousness.
— Léo Errera
In Recueil d'Œuvres de Léo Errera: Botanique Générale (1908), 194. Google translation by Webmaster. Please give feedback if you can improve it.
Science quotes on:  |  Activity (40)  |  Animal (123)  |  Body (78)  |  Cell (74)  |  Collective (4)  |  Consciousness (31)  |  Contemplation (15)  |  Death (168)  |  Duty (21)  |  Example (15)  |  Image (14)  |  Individual (45)  |  Inspiration (22)  |  Leaving (3)  |  Leukocyte (2)  |  Model (25)  |  New (77)  |  Perfection (35)  |  Performance (16)  |  Research (319)  |  Residue (2)  |  Sacrifice (12)  |  Service (16)  |  Society (75)  |  Spirit (42)  |  Waste (21)

But, contrary to the lady's prejudices about the engineering profession, the fact is that quite some time ago the tables were turned between theory and applications in the physical sciences. Since World War II the discoveries that have changed the world are not made so much in lofty halls of theoretical physics as in the less-noticed labs of engineering and experimental physics. The roles of pure and applied science have been reversed; they are no longer what they were in the golden age of physics, in the age of Einstein, Schrödinger, Fermi and Dirac.
— Nicholas Metropolis
'The Age of Computing: a Personal Memoir', Daedalus (1992), 121, 120.
Science quotes on:  |  Application (56)  |  Applied Science (15)  |  Paul A. M. Dirac (32)  |  Discovery (318)  |  Albert Einstein (148)  |  Engineer (25)  |  Fact (277)  |  Enrico Fermi (10)  |  Laboratory (66)  |  Physical Science (28)  |  Physics (142)  |  Prejudice (25)  |  Profession (23)  |  Pure Science (6)  |  Reverse (6)  |  Erwin Schrödinger (18)  |  Theoretical Physics (11)  |  Theory (319)  |  World War II (3)

Chance... in the accommodation peculiar to sensorimotor intelligence, plays the same role as in scientific discovery. It is only useful to the genius and its revelations remain meaningless to the unskilled.
— Jean Piaget
The Origin of Intelligence in the Child (1936), trans. Margaret Cook (1953), 303.
Science quotes on:  |  Accommodation (4)  |  Chance (67)  |  Discovery (318)  |  Genius (77)  |  Intelligence (64)  |  Meaningless (4)  |  Peculiar (6)  |  Play (14)  |  Revelation (21)  |  Unskilled (2)  |  Usefulness (49)

For the religious, passivism [i.e., objects are obedient to the laws of nature] provides a clear role of God as the author of the laws of nature. If the laws of nature are God's commands for an essentially passive world ..., God also has the power to suspend the laws of nature, and so perform miracles.
— Brian Ellis
The Philosophy of Nature: A Guide to the New Essentialism (2002), 2.
Science quotes on:  |  Author (16)  |  Clear (7)  |  Command (4)  |  God (207)  |  Law Of Nature (25)  |  Miracle (20)  |  Obedience (9)  |  Object (38)  |  Passive (2)  |  Performance (16)  |  Religion (101)  |  Suspend (4)

It appears unlikely that the role of the genes in development is to be understood so long as the genes are considered as dictatorial elements in the cellular economy. It is not enough to know what a gene does when it manifests itself. One must also know the mechanisms determining which of the many gene-controlled potentialities will be realized.
— David Ledbetter Nanney
'The Role of the Cytoplasm in Heredity', in William D. McElroy and Bentley Glass (eds.), A Symposium on the Chemical Basis of Heredity (1957), 162.
Science quotes on:  |  Cell (74)  |  Determination (27)  |  Development (97)  |  Economy (17)  |  Gene (47)  |  Knowledge (593)  |  Manifestation (18)  |  Mechanism (20)  |  Potentiality (2)  |  Realization (20)  |  Understanding (195)

It is possible to state as a general principle that the mesodermic phagocytes, which originally (as in the sponges of our days) acted as digestive cells, retained their role to absorb the dead or weakened parts of the organism as much as different foreign intruders.
— Elie Metchnikoff
'Uber die Pathologische Bedeutung der Intracellularen Verduung', Fortschritte der Medizin (1884), 17, 558-569. Trans. Alfred I. Tauber and Leon Chernyak, Metchnikoff and the Origins of Immunology (1991), 141.
Science quotes on:  |  Cell (74)  |  Dead (9)  |  Digestion (15)  |  Organism (58)  |  Phagocyte (2)  |  Principle (87)

Man embraces in his makeup all the natural orders; he's a squid, a mollusk, a sucker and a buzzard; sometimes he's a cerebrate.
— Martin H. Fischer
Science quotes on:  |  Buzzard (2)  |  Man (239)  |  Mollusk (3)

Pavlov's data on the two fundamental antagonistic nervous processes—stimulation and inhibition—and his profound generalizations regarding them, in particular, that these processes are parts of a united whole, that they are in a state of constant conflict and constant transition of the one to the other, and his views on the dominant role they play in the formation of the higher nervous activity—all those belong to the most established natural—scientific validation of the Marxist dialectal method. They are in complete accord with the Leninist concepts on the role of the struggle between opposites in the evolution, the motion of matter.
— Ezras A. Asratyan
In E. A. Asratyan, I. P. Pavlov: His Life and Work (1953), 153.
Science quotes on:  |  Accord (5)  |  Activity (40)  |  Belonging (8)  |  Concept (29)  |  Conflict (18)  |  Constancy (4)  |  Data (40)  |  Establishment (15)  |  Evolution (313)  |  Formation (29)  |  Fundamental (46)  |  Generalization (15)  |  Higher (14)  |  Inhibition (11)  |  Lenin_Vladimir (2)  |  Karl Marx (10)  |  Matter (122)  |  Motion (58)  |  Natural (27)  |  Nerve (50)  |  Opposite (19)  |  Part (42)  |  Particular (16)  |  Ivan Petrovich Pavlov (12)  |  Play (14)  |  Process (79)  |  Profoundness (2)  |  Regard (14)  |  Stimulation (5)  |  Struggle (14)  |  Transition (5)  |  Union (5)  |  Whole (31)

Pavlov's data on the two fundamental antagonistic nervous processes—stimulation and inhibition—and his profound generalizations regarding them, in particular, that these processes are parts of a united whole, that they are in a state of constant conflict and constant transition of the one to the other, and his views on the dominant role they play in the formation of the higher nervous activity—all those belong to the most established natural—scientific validation of the Marxist dialectal method. They are in complete accord with the Leninist concepts on the role of the struggle between opposites in the evolution, the motion of matter.
— Ezras A. Asratyan
In E. A. Asratyan, I. P. Pavlov: His Life and Work (1953), 153.
Science quotes on:  |  Accord (5)  |  Activity (40)  |  Belonging (8)  |  Concept (29)  |  Conflict (18)  |  Constancy (4)  |  Data (40)  |  Establishment (15)  |  Evolution (313)  |  Formation (29)  |  Fundamental (46)  |  Generalization (15)  |  Higher (14)  |  Inhibition (11)  |  Lenin_Vladimir (2)  |  Karl Marx (10)  |  Matter (122)  |  Motion (58)  |  Natural (27)  |  Nerve (50)  |  Opposite (19)  |  Part (42)  |  Particular (16)  |  Ivan Petrovich Pavlov (12)  |  Play (14)  |  Process (79)  |  Profoundness (2)  |  Regard (14)  |  Stimulation (5)  |  Struggle (14)  |  Transition (5)  |  Union (5)  |  Whole (31)

The burgeoning field of computer science has shifted our view of the physical world from that of a collection of interacting material particles to one of a seething network of information. In this way of looking at nature, the laws of physics are a form of software, or algorithm, while the material world—the hardware—plays the role of a gigantic computer.
— P.C.W. Davies
'Laying Down the Laws', New Scientist. In Clifford A. Pickover, Archimedes to Hawking: Laws of Science and the Great Minds Behind Them (2008), 183.
Science quotes on:  |  Algorithm (3)  |  Collection (18)  |  Computer (47)  |  Computer Science (4)  |  Field (52)  |  Gigantic (4)  |  Information (36)  |  Interaction (8)  |  Law (243)  |  Look (25)  |  Material World (2)  |  Matter (122)  |  Nature (475)  |  Network (4)  |  Particle (42)  |  Physical World (2)  |  Physics (142)  |  Shift (7)  |  Software (7)  |  View (41)

Those individuals who give moral considerations a much greater weight than considerations of expediency represent a comparatively small minority, five percent of the people perhaps. But, In spite of their numerical inferiority, they play a major role in our society because theirs is the voice of the conscience of society.
— Leo Szilard
In J. Robert Moskin, Morality in America (1966), 17. Otherwise unconfirmed in this form. Please contact webmaster if you know a primary print source.
Science quotes on:  |  Comparatively (2)  |  Conscience (14)  |  Consideration (36)  |  Expediency (3)  |  Individual (45)  |  Inferiority (4)  |  Major (5)  |  Minority (5)  |  Moral (32)  |  Numerical (3)  |  People (64)  |  Small (26)  |  Society (75)  |  Voice (14)  |  Weight (35)

Tungsten, X-rays, and Coolidge form a trinity that has left an indelible impression upon our life and times. The key word in this triad is Coolidge, for his work brought the element tungsten from laboratory obscurity to the central role of the industrial stage and gave the X-ray a central role in the progress of medicine throughout the world.
— C. Guy Suits
In National Academy of Sciences, Biographical Memoirs, Vol. 53, 141.
Science quotes on:  |  Central (7)  |  Element (63)  |  Impression (24)  |  Industry (42)  |  Laboratory (66)  |  Medicine (183)  |  Obscurity (8)  |  Progress (180)  |  Stage (11)  |  Trinity (2)  |  Tungsten (2)  |  X-ray (13)

[On the practical applications of particle physics research with the Large Hadron Collider.] Sometimes the public says, 'What's in it for Numero Uno? Am I going to get better television reception? Am I going to get better Internet reception?' Well, in some sense, yeah. ... All the wonders of quantum physics were learned basically from looking at atom-smasher technology. ... But let me let you in on a secret: We physicists are not driven to do this because of better color television. ... That's a spin-off. We do this because we want to understand our role and our place in the universe.
— Michio Kaku
As quoted in Alan Boyle, 'Discovery of Doom? Collider Stirs Debate', article (8 Sep 2008) on a msnbc.com web page. The article writer included the information that Kaku noted that past discoveries from the world of particle physics ushered in many of the innovations we enjoy today, ranging from satellite communications and handheld media players to medical PET scanners (which put antimatter to practical use)."
Science quotes on:  |  Atom Smasher (2)  |  Discovery (318)  |  Internet (5)  |  Large Hadron Collider (6)  |  Particle Physics (4)  |  Physicist (61)  |  Public (21)  |  Quantum Physics (15)  |  Reception (5)  |  Research (319)  |  Satellite (7)  |  Secret (33)  |  Sense (91)  |  Technology (82)  |  Television (6)  |  Understanding (195)  |  Universe (249)



Carl Sagan Thumbnail At the heart of science is an essential balance between two seemingly contradictory attitudes--an openness to new ideas, no matter how bizarre or counterintuitive they may be, and the most ruthless skeptical scrutiny of all ideas, old and new. This is how deep truths are winnowed from deep nonsense. -- Carl Sagan

More quotes:     Name Index    Isaac Newton    Lord Kelvin    Charles Darwin    Albert Einstein    Aristotle    Michio Kaku    Srinivasa Ramanujan    Carl Sagan    Florence Nightingale    Atomic  Bomb    Biology    Chemistry    Deforestation    Engineering

Sitewide search within all Today In Science History pages:
Custom Quotations Search - custom search within only our quotations pages:


Visit our Science and Scientist Quotations index for more Science Quotes from archaeologists, biologists, chemists, geologists, inventors and inventions, mathematicians, physicists, pioneers in medicine, science events and technology.

Names index: | A | B | C | D | E | F | G | H | I | J | K | L | M | N | O | P | Q | R | S | T | U | V | W | X | Y | Z |

Categories index: | 1 | 2 | A | B | C | D | E | F | G | H | I | J | K | L | M | N | O | P | Q | R | S | T | U | V | W | X | Y | Z |



Please add a link from your own site or blog if you find this site useful.
Author Icon by Ian Ellis
who invites your feedback
Thank you for sharing the site with Tweets, Facebook and Stumble Upon.






Explore 100 Famous Scientist Quotes Pages

Click above to expand
- 100 -
Sophie Germain
Gertrude Elion
Ernest Rutherford
James Chadwick
Marcel Proust
William Harvey
Johann Goethe
John Keynes
Carl Gauss
Paul Feyerabend
- 90 -
Antoine Lavoisier
Lise Meitner
Charles Babbage
Ibn Khaldun
Euclid
Ralph Emerson
Robert Bunsen
Frederick Banting
Andre Ampere
Winston Churchill
- 80 -
John Locke
Bronislaw Malinowski
Bible
Thomas Huxley
Alessandro Volta
Erwin Schrodinger
Wilhelm Roentgen
Louis Pasteur
Bertrand Russell
Jean Lamarck
- 70 -
Samuel Morse
John Wheeler
Nicolaus Copernicus
Robert Fulton
Pierre Laplace
Humphry Davy
Thomas Edison
Lord Kelvin
Theodore Roosevelt
Carolus Linnaeus
- 60 -
Francis Galton
Linus Pauling
Immanuel Kant
Martin Fischer
Robert Boyle
Karl Popper
Paul Dirac
Avicenna
James Watson
William Shakespeare
- 50 -
Stephen Hawking
Niels Bohr
Nikola Tesla
Rachel Carson
Max Planck
Henry Adams
Richard Dawkins
Werner Heisenberg
Alfred Wegener
John Dalton
- 40 -
Pierre Fermat
Edward Wilson
Johannes Kepler
Gustave Eiffel
Giordano Bruno
JJ Thomson
Thomas Kuhn
Leonardo DaVinci
Archimedes
David Hume
- 30 -
Andreas Vesalius
Rudolf Virchow
Richard Feynman
James Hutton
Alexander Fleming
Emile Durkheim
Benjamin Franklin
Robert Oppenheimer
Robert Hooke
Charles Kettering
- 20 -
Carl Sagan
James Maxwell
Marie Curie
Rene Descartes
Francis Crick
Hippocrates
Michael Faraday
Srinivasa Ramanujan
Francis Bacon
Galileo Galilei
- 10 -
Aristotle
John Watson
Rosalind Franklin
Michio Kaku
Isaac Asimov
Charles Darwin
Sigmund Freud
Albert Einstein
Florence Nightingale
Isaac Newton

Scroll above for more
Scientist Quotes Index
Today in Science History ©  1999 - 2013 by Todayinsci ®