The secret of life, though, is to fall seven times and to get up eight times.

Proverbs are short sentences drawn from long experience.

Doubt is the origin of wisdom

Our society is run by insane people for insane objectives.

There is no question climate change is happening. The only arguable point is what part humans are playing in it.

Out of suffering have emerged the strongest souls; the most massive characters are seared with scars.

If you don't behave as you believe, you will end by believing as you behave.

Do not deny the classical approach, simply as a reaction, or you will have created another pattern and trapped yourself there.

But the fact that some geniuses were laughed at does not imply that all who are laughed at are geniuses. They laughed at Columbus, they laughed at Fulton, they laughed at the Wright brothers. But they also laughed at Bozo the Clown.

We sometimes congratulate ourselves at the moment of waking from a troubled dream; it may be so the moment after death.

Convictions are more dangerous enemies of truth than lies.

I believe that one defines oneself by reinvention. To not be like your parents. To not be like your friends. To be yourself. To cut yourself out of stone.

Criticize the act, not the person.

Anger begins in folly, and ends in repentance.

And this sensitivity will create new friendships for you - friendships with trees, with birds, with animals, with mountains, with rivers, with oceans, with stars. Life becomes richer as love grows.

To kill an error is as good a service as, and sometimes even better than, the establishing of a new truth or fact

No one can make you feel inferior without your consent.

If you only read the books that everyone else is reading, you can only think what everyone else is thinking.

Throw your heart over the fence and the rest will follow.

The trouble with most of us is that we would rather be ruined by praise than saved by criticism.

Judge not unless you judge yourself.