"Adapt or perish, now as ever, is nature's inexorable imperative."

"The past is but the beginning of a beginning."

"Religion is pickled God."

"Moral indignation is jealousy with a halo."

"The crisis of today is the joke of tomorrow."

"Strength is the outcome of need."

"A book is a mirror; if an ass peers into it, you can not expect an apostle to peer out."

"The only use of a knowledge of the past is to equip us for the present. The present contains all that there is. It is holy ground; for it is the past, and it is the future."

"It's not that I'm so smart , it's just that I stay with problems longer."

"A definite purpose, like blinders on a horse, inevitably narrows its possessor's point of view."

"Being able to support oneself allows one to choose a marriage out of love and not just economic dependence. It also allows one to risk that marriage."

"The spirit of resistance to government is so valuable on certain occasions that I wish it to be always kept alive."