“Words tend to bounce off nature as they try to deliver nature's language into the hands of another language foreign to it.”

“...the beautiful in nature is like a spark flashing momentarily and disappearing as soon as one tries to get hold of it.”

“Love you will find only where you may show yourself weak without provoking strength.”

“Love is the power to see similarity in the dissimilar.”

“Advice to intellectuals: let no-one represent you.”

“Intelligence is a moral category.”

“If I hadn't been inside of Biosphere 2 and really lived a biological life-support system, I definitely would not be involved in life-support systems for space.”

“Only a life lived for others is a life worthwhile.”

“I grew up in a household where everybody lived at the top of his lungs.”

“It's morally wrong to allow a sucker to keep his money.”

“It is very unnerving to be proven wrong, particularly when you are really right and the person who is really wrong is proving you wrong and proving himself, wrongly, right.”

“The secret to being wrong isn't to avoid being wrong! The secret is being willing to be wrong. The secret is realizing that wrong isn't fatal.”

“Love is such a tremendous force of feeling! When you can't stop loving, you simply cannot stop it.”

“When you think in silence you cannot speak your mind.”

“A successful person will never use the word no, I cannot or it is impossible”