“Nature has put itself the problem of how to catch in flight light streaming to the Earth and to store the most elusive of all powers in rigid form. The plants take in one form of power, light; and produce another power, chemical difference.”

“The vital chemical process was the ultimate source of energy for a living organism.”

“... I hear words by the poet Rilke: ‘... if you set this brain of mine on fire, then on my blood I yet will carry you.’”