"Do not spit in the well - you may be thirsty by and by."

"There is no shame in not knowing; the shame lies in not finding out."

"A spoken word is not a sparrow. Once it flies out, you can't catch it."

"Gossip needs no carriage."

"A kind word is like a spring day."

"It is not the horse that draws the cart, but the oats."

"The best antidote I have found is to yearn for something. As long as you yearn, you can't congeal: there is a forward motion to yearning."

"Irrationally held truths may be more harmful than reasoned errors."

"There are no facts, only interpretations."

"The only thing new in the world is the history that you don't know."

"Wonder is what sets us apart from other life forms. No other species wonders about the meaning of existence or the complexity of the universe or themselves."

"What a waste it is to lose one's mind. Or not to have a mind is being very wasteful. How true that is."