"I usually get my best ideas when I'm eating an apple."

"I have enjoyed greatly the second blooming that comes when you finish the life of the emotions and of personal relations; and suddenly find—at the age of fifty, say—that a whole new life has opened be…"

"Never go back to a place where you have been happy. Until you do it remains alive for you. If you go back it will be destroyed."

"I have always been fond of children. I have always been fond of animals. I have always been fond of nature."

"I don’t think necessity is the mother of invention. Invention, in my opinion, arises directly from idleness, possibly also from laziness—to save oneself trouble."