“If equal affection cannot be, let the more loving be me.”

“'Healing,' Papa would tell me, 'is not a science, but the intuitive art of wooing nature.'”

“When I find myself in the company of scientists, I feel like a shabby curate who has strayed by mistake into a room full of dukes.”

“A professor is someone who talks in someone else's sleep.”

“Thousands have lived without love, not one without water.”

“Death is the sound of distant thunder at a picnic.”

“Men of lofty genius when they are doing the least work are most active.”

“Neither a lofty degree of intelligence nor imagination nor both together go to the making of genius. Love, love, love, that is the soul of genius.”

“There's a fine line between genius and insanity. I have erased this line.”