I don’t think we are going to become extinct. We are very clever and very resourceful.

Lend yourself to others, but give yourself to yourself.

The crisis of today is the joke of tomorrow.

The greatest sin is to think yourself weak

Instead of worrying about what people say of you, why not spend time trying to accomplish something they will admire

One of the things I learned when I was negotiating was that until I changed myself, I could not change others.

Don't fear failure. Not failure, but low aim, is the crime. In great attempts it is glorious even to fail.

Out of your vulnerabilities will come your strength.

Nothing is impossible, the word itself says 'I am possible'

Sincerity and truth are the basis of every virtue.

Winning isn't everything but wanting to win is.

Become a possibilitarian. No matter how dark things seem to be or actually are, raise your sights and see possibilities -- always see them, for they're always there.

Yesterday is gone. Tomorrow has not yet come. We have only today. Let us begin.

If I find 10,000 ways something won't work, I haven't failed. I am not discouraged, because every wrong attempt discarded is another step forward.

The present is theirs; the future, for which I really worked, is mine.

The person who takes no chances generally has to take whatever is left when others are through choosing.

I am the captain of my soul.

Weakness of attitude becomes weakness of character.

The three things that are most essential to achievement are common sense, hard work and stick-to-it-iv-nes

I'll try anything once, twice if I like it, three times to make sure.

Imagination is everything. It is the preview of life's coming attractions.