Scientist Quotations - Categories Index for Initial R
This list includes science quotes from archaeologists, biologists, chemists, geologists, inventors and inventions, mathematicians, physicists plus pioneers in medicine, science events and technology.
This index gives quotes listed under category headings. When the category is a scientist name, the index is for any reference made ABOUT the scientist BY another person.
R.A.F. (1)
Rabbit (3)
Rabbit-Test (1)
Rabi_Isador (1)
Raccoon (1)
Race (32)
Racing (1)
Rack (1)
Racking (1)
Radar (4)
Radiance (3)
Radiation (12)
Radical (9)
Radicalism (1)
Radically (1)
Radio (11)
Radio Astronomy (2)
Radio Telescope (4)
Radioactive Decay (1)
Radioactivity (21)
Radiogram (1)
Radioimmunoassay (1)
Radiometer (1)
Radium (13)
Radius (3)
Radon (1)
Rafter (1)
Ragamuffin (1)
Rage (2)
Ragged (1)
Raid (1)
Railroad (5)
Railway (5)
Rain (14)
Rain Forest (4)
Rainbow (1)
Raindrop (1)
Rainfall (1)
Raise (5)
Raising (2)
Ramble (1)
Ramification (1)
Rampage (1)
Random (9)
Random Number (2)
Randomness (1)
Range (10)
Rank (11)
Ranking (1)
Rapid (2)
Rapidity (13)
Rapidly (3)
Rapport (1)
Rapture (1)
Rare (9)
Rarity (5)
Rascal (1)
Rashly (2)
Rashness (2)
Rat (10)
Rat-Hole (2)
Ratcliffe_Jack (2)
Rate (5)
Ratio (9)
Ratiocination (2)
Rational (13)
Rationale (2)
Rationalism (1)
Rationality (3)
Rattle (1)
Raucousness (1)
Rauscher_Frank (1)
Ravage (3)
Ravine (3)
Raw (2)
Ray (16)
Raze (1)
Razor (1)
Reach (22)
Reaching (1)
Reactant (1)
Reaction (45)
Reaction Force (1)
Reactionary (2)
Reactor (1)
Read (18)
Reader (7)
Readiness (4)
Reading (22)
Readjustment (1)
Reagent (2)
Reagents (1)
Real (16)
Real Life (2)
Real World (1)
Realise (1)
Realism (1)
Realistic (1)
Reality (57)
Realizable (1)
Realization (20)
Realize (2)
Reallocation (1)
Really (2)
Realm (13)
Reanimation (1)
Reap (2)
Reaper (1)
Reaping (4)
Reappearance (2)
Rear (2)
Rearrange (1)
Rearrangement (1)
Reason (146)
Reasonable (3)
Reasonableness (3)
Reasoning (48)
Reasonings (1)
Reassemble (1)
Reassurance (1)
Rebel (2)
Rebirth (1)
Rebound (1)
Rebuild (1)
Recall (3)
Recalling (1)
Recapitulation (3)
Receding (1)
Receipt (1)
Receive (3)
Receiver (3)
Receiving (2)
Recent (7)
Reception (5)
Recession (1)
Recessive (3)
Recheck (1)
Recipe (3)
Recipient (2)
Reciprocal (2)
Reckless (1)
Recklessly (1)
Recklessness (1)
Reckon (1)
Reckoning (1)
Recognition (28)
Recognize (6)
Recognized (1)
Recoil (2)
Recollection (3)
Recombination (1)
Recommencing (1)
Recommendation (4)
Recompense (1)
Reconcile (5)
Reconciliation (4)
Recondite (1)
Reconsideration (2)
Reconstitution (1)
Reconstruction (8)
Record (15)
Recording (3)
Recourse (3)
Recovery (8)
Recreation (5)
Recruit (1)
Rectilinear (1)
Recurrent (1)
Recycling (1)
Red (9)
Red Cell (2)
Red Cross (1)
Red Hot (1)
Red Queen (2)
Red-Shift (3)
Redirected Activity (1)
Rediscovering (1)
Rediscovery (1)
Redistribution (1)
Redness (2)
Redoing (1)
Redox Reaction (2)
Reduce (7)
Reduced (1)
Reducible (1)
Reducing (1)
Reductio Ad Absurdum (1)
Reduction (19)
Reductionism (2)
Reductionisnm (1)
Redwood (6)
Reed (2)
Reef (2)
Reevaluation (2)
Referee (2)
Reference (4)
Reference Frame (1)
Refined (1)
Refinement (5)
Reflect (1)
Reflecting (2)
Reflecting Telescope (1)
Reflection (24)
Reflector (3)
Reflex (8)
Reflux (1)
Reform (5)
Reformer (2)
Refracting Telescope (1)
Refraction (4)
Refractor (1)
Refractory (1)
Refrain (1)
Refrangibility (2)
Refresh (1)
Refreshing (1)
Refreshment (1)
Refrigeration (1)
Refrigerator (2)
Refuge (4)
Refusal (9)
Refuse (3)
Refutation (7)
Regaining (1)
Regard (14)
Regarding (2)
Regeneration (1)
Regimentation (1)
Region (8)
Register (3)
Registrar (1)
Registration (2)
Regression (1)
Regret (8)
Regular (1)
Regularity (11)
Regulation (9)
Regulator (1)
Rehearse (1)
Reign (4)
Reindeer (1)
Reinforce (1)
Reject (4)
Rejected (1)
Rejection (14)
Rejoice (4)
Rejoicing (2)
Relapse (1)
Relates (1)
Relation (30)
Relationship (29)
Relative (8)
Relativist (1)
Relativity (30)
Release (4)
Relegation (1)
Relentless (3)
Relevance (7)
Reliability (9)
Reliance (4)
Relief (4)
Relieved (1)
Religion (101)
Religion And Science (1)
Religious (2)
Reluctance (2)
Reluctant (1)
Remain (11)
Remaining (7)
Remains (3)
Remaking (1)
Remark (9)
Remarkable (9)
Remedy (23)
Remember (14)
Rememberance (1)
Remembering (2)
Reminder (2)
Remorse (1)
Remote (7)
Remote Control (1)
Remotely (1)
Remoteness (4)
Removable (1)
Removal (6)
Remove (5)
Renaissance (2)
Render (5)
Rendering (4)
Renew (2)
Renewable Energy (6)
Renewable Resource (1)
Renewal (1)
Renewed (1)
Renoir_Pierre (1)
Renovation (1)
Repair (4)
Repeal (1)
Repeat (8)
Repellent (1)
Repetition (16)
Repitition (1)
Replace (1)
Replacement (5)
Replacing (1)
Replica (1)
Replication (3)
Reply (7)
Report (10)
Reporter (1)
Reporting (1)
Repose (2)
Repository (1)
Represent (2)
Representation (15)
Representative (5)
Repressed (1)
Repression (1)
Reprisal (1)
Reproducibility (2)
Reproduction (30)
Reptile (12)
Republic (2)
Repulsion (2)
Repulsive (2)
Reputation (6)
Repute (1)
Require (1)
Requirement (21)
Requisite (1)
Rescue (2)
Research (319)
Researcher (6)
Resemblance (14)
Resemblances (1)
Resemble (1)
Resembling (1)
Resent (1)
Resentment (2)
Reservation (4)
Reserve (3)
Reservoir (1)
Reside (2)
Residence (1)
Residual (1)
Residue (2)
Resign (1)
Resin (1)
Resist (3)
Resistance (11)
Resistless (1)
Resolution (9)
Resolve (4)
Resonance (2)
Resonator (1)
Resort (1)
Resource (8)
Resourcefulness (1)
Respect (19)
Respectability (1)
Respectable (2)
Respectively (1)
Respiration (10)
Respite (1)
Response (8)
Responsibility (21)
Responsible (1)
Rest (25)
Restaurant (3)
Restless (1)
Restlessness (2)
Restoration (3)
Restore (1)
Restrain (1)
Restraint (4)
Restriction (2)
Result (103)
Retain (4)
Retainment (1)
Retaliation (1)
Retardation (4)
Retention (2)
Reticular (1)
Retina (2)
Retine (1)
Retinue (1)
Retirement (2)
Retort (1)
Retrace (1)
Retrograde (1)
Retrogress (1)
Retrospective (1)
Return (8)
Reuniting (1)
Reveal (3)
Revealer (1)
Revel (1)
Revelation (21)
Revenge (1)
Revenue (1)
Reverberation (1)
Revere (1)
Reverence (12)
Reverie (1)
Reversal (1)
Reverse (6)
Reversion (1)
Revert (1)
Review (1)
Reviewer (1)
Revise (3)
Revision (2)
Revitalize (1)
Revocation (1)
Revolution (30)
Revolutionary (5)
Revolve (2)
Reward (15)
Rheims (1)
Rhenium (1)
Rhesus (1)
Rhetoric (1)
Rheumatic Fever (1)
Rheumatism (1)
Rheumatologist (1)
Rhine (1)
Rhodedendron (1)
Rhodium (1)
Rhododendron (1)
Rhyme (1)
Rhythm (3)
Rib (2)
Rich (10)
Riches (5)
Richness (7)
Rickets (1)
Rid (2)
Riddle (7)
Ride (1)
Rider (1)
Ridge (1)
Ridicule (7)
Ridiculous (5)
Riemann_Georg (1)
Rift (1)
Right (37)
Right-Angle (1)
Right-Hand (1)
Rigid (2)
Rigidity (3)
Rigor (5)
Rigorous (2)
Rigour (9)
Rigour (Rigor) (2)
Rigourous (1)
Rill (1)
Ring (6)
Ringing (1)
Ripeness (1)
Ripple (1)
Rise (11)
Rise And Fall (1)
Rising (2)
Risk (8)
Rite (1)
Ritual (4)
Rival (2)
Rivalry (1)
River (27)
RNA (1)
Road (10)
Roar (1)
Robbery (3)
Robin (1)
Robot (4)
Rock (51)
Rocket (13)
Rocket Science (2)
Rogue (1)
Role (13)
Role Model (5)
Roll (3)
Rolling (2)
Roman (4)
Roman Catholic (1)
Romance (5)
Romantic (2)
Romanticism (1)
Romanticist (1)
Rome (4)
Roof (5)
Room (9)
Room Temperature (1)
Root (15)
Rope (1)
Rose (3)
Rot (4)
Rotate (1)
Rotation (5)
Rote (1)
Rotting (2)
Rough (2)
Round (3)
Rounded (1)
Route (3)
Routine (4)
Row (2)
Royal (2)
Royal Academy (1)
Royal Family (1)
Royal Institution (1)
Royal Road (1)
Royal Society (6)
Royalty (2)
Rub (1)
Rubber (2)
Rubbing (1)
Rubbish (5)
Rubidium (1)
Rucksack (1)
Rudder (2)
Rude (1)
Rudeness (3)
Rudiment (1)
Rug (1)
Rugged (3)
Ruin (12)
Rule (44)
Rule Of Thumb (1)
Ruler (4)
Ruling (1)
Ruminant (1)
Rumour (1)
Run (7)
Runner (1)
Running (4)
Rural (1)
Rush (4)
Russia (4)
Russian (1)
Russian Science (1)
Rust (2)
Ruthenium (1)
Ruthlessness (3)
Rabbit (3)
Rabbit-Test (1)
Rabi_Isador (1)
Raccoon (1)
Race (32)
Racing (1)
Rack (1)
Racking (1)
Radar (4)
Radiance (3)
Radiation (12)
Radical (9)
Radicalism (1)
Radically (1)
Radio (11)
Radio Astronomy (2)
Radio Telescope (4)
Radioactive Decay (1)
Radioactivity (21)
Radiogram (1)
Radioimmunoassay (1)
Radiometer (1)
Radium (13)
Radius (3)
Radon (1)
Rafter (1)
Ragamuffin (1)
Rage (2)
Ragged (1)
Raid (1)
Railroad (5)
Railway (5)
Rain (14)
Rain Forest (4)
Rainbow (1)
Raindrop (1)
Rainfall (1)
Raise (5)
Raising (2)
Ramble (1)
Ramification (1)
Rampage (1)
Random (9)
Random Number (2)
Randomness (1)
Range (10)
Rank (11)
Ranking (1)
Rapid (2)
Rapidity (13)
Rapidly (3)
Rapport (1)
Rapture (1)
Rare (9)
Rarity (5)
Rascal (1)
Rashly (2)
Rashness (2)
Rat (10)
Rat-Hole (2)
Ratcliffe_Jack (2)
Rate (5)
Ratio (9)
Ratiocination (2)
Rational (13)
Rationale (2)
Rationalism (1)
Rationality (3)
Rattle (1)
Raucousness (1)
Rauscher_Frank (1)
Ravage (3)
Ravine (3)
Raw (2)
Ray (16)
Raze (1)
Razor (1)
Reach (22)
Reaching (1)
Reactant (1)
Reaction (45)
Reaction Force (1)
Reactionary (2)
Reactor (1)
Read (18)
Reader (7)
Readiness (4)
Reading (22)
Readjustment (1)
Reagent (2)
Reagents (1)
Real (16)
Real Life (2)
Real World (1)
Realise (1)
Realism (1)
Realistic (1)
Reality (57)
Realizable (1)
Realization (20)
Realize (2)
Reallocation (1)
Really (2)
Realm (13)
Reanimation (1)
Reap (2)
Reaper (1)
Reaping (4)
Reappearance (2)
Rear (2)
Rearrange (1)
Rearrangement (1)
Reason (146)
Reasonable (3)
Reasonableness (3)
Reasoning (48)
Reasonings (1)
Reassemble (1)
Reassurance (1)
Rebel (2)
Rebirth (1)
Rebound (1)
Rebuild (1)
Recall (3)
Recalling (1)
Recapitulation (3)
Receding (1)
Receipt (1)
Receive (3)
Receiver (3)
Receiving (2)
Recent (7)
Reception (5)
Recession (1)
Recessive (3)
Recheck (1)
Recipe (3)
Recipient (2)
Reciprocal (2)
Reckless (1)
Recklessly (1)
Recklessness (1)
Reckon (1)
Reckoning (1)
Recognition (28)
Recognize (6)
Recognized (1)
Recoil (2)
Recollection (3)
Recombination (1)
Recommencing (1)
Recommendation (4)
Recompense (1)
Reconcile (5)
Reconciliation (4)
Recondite (1)
Reconsideration (2)
Reconstitution (1)
Reconstruction (8)
Record (15)
Recording (3)
Recourse (3)
Recovery (8)
Recreation (5)
Recruit (1)
Rectilinear (1)
Recurrent (1)
Recycling (1)
Red (9)
Red Cell (2)
Red Cross (1)
Red Hot (1)
Red Queen (2)
Red-Shift (3)
Redirected Activity (1)
Rediscovering (1)
Rediscovery (1)
Redistribution (1)
Redness (2)
Redoing (1)
Redox Reaction (2)
Reduce (7)
Reduced (1)
Reducible (1)
Reducing (1)
Reductio Ad Absurdum (1)
Reduction (19)
Reductionism (2)
Reductionisnm (1)
Redwood (6)
Reed (2)
Reef (2)
Reevaluation (2)
Referee (2)
Reference (4)
Reference Frame (1)
Refined (1)
Refinement (5)
Reflect (1)
Reflecting (2)
Reflecting Telescope (1)
Reflection (24)
Reflector (3)
Reflex (8)
Reflux (1)
Reform (5)
Reformer (2)
Refracting Telescope (1)
Refraction (4)
Refractor (1)
Refractory (1)
Refrain (1)
Refrangibility (2)
Refresh (1)
Refreshing (1)
Refreshment (1)
Refrigeration (1)
Refrigerator (2)
Refuge (4)
Refusal (9)
Refuse (3)
Refutation (7)
Regaining (1)
Regard (14)
Regarding (2)
Regeneration (1)
Regimentation (1)
Region (8)
Register (3)
Registrar (1)
Registration (2)
Regression (1)
Regret (8)
Regular (1)
Regularity (11)
Regulation (9)
Regulator (1)
Rehearse (1)
Reign (4)
Reindeer (1)
Reinforce (1)
Reject (4)
Rejected (1)
Rejection (14)
Rejoice (4)
Rejoicing (2)
Relapse (1)
Relates (1)
Relation (30)
Relationship (29)
Relative (8)
Relativist (1)
Relativity (30)
Release (4)
Relegation (1)
Relentless (3)
Relevance (7)
Reliability (9)
Reliance (4)
Relief (4)
Relieved (1)
Religion (101)
Religion And Science (1)
Religious (2)
Reluctance (2)
Reluctant (1)
Remain (11)
Remaining (7)
Remains (3)
Remaking (1)
Remark (9)
Remarkable (9)
Remedy (23)
Remember (14)
Rememberance (1)
Remembering (2)
Reminder (2)
Remorse (1)
Remote (7)
Remote Control (1)
Remotely (1)
Remoteness (4)
Removable (1)
Removal (6)
Remove (5)
Renaissance (2)
Render (5)
Rendering (4)
Renew (2)
Renewable Energy (6)
Renewable Resource (1)
Renewal (1)
Renewed (1)
Renoir_Pierre (1)
Renovation (1)
Repair (4)
Repeal (1)
Repeat (8)
Repellent (1)
Repetition (16)
Repitition (1)
Replace (1)
Replacement (5)
Replacing (1)
Replica (1)
Replication (3)
Reply (7)
Report (10)
Reporter (1)
Reporting (1)
Repose (2)
Repository (1)
Represent (2)
Representation (15)
Representative (5)
Repressed (1)
Repression (1)
Reprisal (1)
Reproducibility (2)
Reproduction (30)
Reptile (12)
Republic (2)
Repulsion (2)
Repulsive (2)
Reputation (6)
Repute (1)
Require (1)
Requirement (21)
Requisite (1)
Rescue (2)
Research (319)
Researcher (6)
Resemblance (14)
Resemblances (1)
Resemble (1)
Resembling (1)
Resent (1)
Resentment (2)
Reservation (4)
Reserve (3)
Reservoir (1)
Reside (2)
Residence (1)
Residual (1)
Residue (2)
Resign (1)
Resin (1)
Resist (3)
Resistance (11)
Resistless (1)
Resolution (9)
Resolve (4)
Resonance (2)
Resonator (1)
Resort (1)
Resource (8)
Resourcefulness (1)
Respect (19)
Respectability (1)
Respectable (2)
Respectively (1)
Respiration (10)
Respite (1)
Response (8)
Responsibility (21)
Responsible (1)
Rest (25)
Restaurant (3)
Restless (1)
Restlessness (2)
Restoration (3)
Restore (1)
Restrain (1)
Restraint (4)
Restriction (2)
Result (103)
Retain (4)
Retainment (1)
Retaliation (1)
Retardation (4)
Retention (2)
Reticular (1)
Retina (2)
Retine (1)
Retinue (1)
Retirement (2)
Retort (1)
Retrace (1)
Retrograde (1)
Retrogress (1)
Retrospective (1)
Return (8)
Reuniting (1)
Reveal (3)
Revealer (1)
Revel (1)
Revelation (21)
Revenge (1)
Revenue (1)
Reverberation (1)
Revere (1)
Reverence (12)
Reverie (1)
Reversal (1)
Reverse (6)
Reversion (1)
Revert (1)
Review (1)
Reviewer (1)
Revise (3)
Revision (2)
Revitalize (1)
Revocation (1)
Revolution (30)
Revolutionary (5)
Revolve (2)
Reward (15)
Rheims (1)
Rhenium (1)
Rhesus (1)
Rhetoric (1)
Rheumatic Fever (1)
Rheumatism (1)
Rheumatologist (1)
Rhine (1)
Rhodedendron (1)
Rhodium (1)
Rhododendron (1)
Rhyme (1)
Rhythm (3)
Rib (2)
Rich (10)
Riches (5)
Richness (7)
Rickets (1)
Rid (2)
Riddle (7)
Ride (1)
Rider (1)
Ridge (1)
Ridicule (7)
Ridiculous (5)
Riemann_Georg (1)
Rift (1)
Right (37)
Right-Angle (1)
Right-Hand (1)
Rigid (2)
Rigidity (3)
Rigor (5)
Rigorous (2)
Rigour (9)
Rigour (Rigor) (2)
Rigourous (1)
Rill (1)
Ring (6)
Ringing (1)
Ripeness (1)
Ripple (1)
Rise (11)
Rise And Fall (1)
Rising (2)
Risk (8)
Rite (1)
Ritual (4)
Rival (2)
Rivalry (1)
River (27)
RNA (1)
Road (10)
Roar (1)
Robbery (3)
Robin (1)
Robot (4)
Rock (51)
Rocket (13)
Rocket Science (2)
Rogue (1)
Role (13)
Role Model (5)
Roll (3)
Rolling (2)
Roman (4)
Roman Catholic (1)
Romance (5)
Romantic (2)
Romanticism (1)
Romanticist (1)
Rome (4)
Roof (5)
Room (9)
Room Temperature (1)
Root (15)
Rope (1)
Rose (3)
Rot (4)
Rotate (1)
Rotation (5)
Rote (1)
Rotting (2)
Rough (2)
Round (3)
Rounded (1)
Route (3)
Routine (4)
Row (2)
Royal (2)
Royal Academy (1)
Royal Family (1)
Royal Institution (1)
Royal Road (1)
Royal Society (6)
Royalty (2)
Rub (1)
Rubber (2)
Rubbing (1)
Rubbish (5)
Rubidium (1)
Rucksack (1)
Rudder (2)
Rude (1)
Rudeness (3)
Rudiment (1)
Rug (1)
Rugged (3)
Ruin (12)
Rule (44)
Rule Of Thumb (1)
Ruler (4)
Ruling (1)
Ruminant (1)
Rumour (1)
Run (7)
Runner (1)
Running (4)
Rural (1)
Rush (4)
Russia (4)
Russian (1)
Russian Science (1)
Rust (2)
Ruthenium (1)
Ruthlessness (3)
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