I do not believe in immortality of the individual, and I consider ethics to be an exclusively human concern with no superhuman authority behind it.

Gravitation is not responsible for people falling in love.

Life is like riding a bicycle. To keep your balance, you must keep moving.

Life isn't worth living, unless it is lived for someone else.

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

Wisdom is not a product of schooling but of the lifelong attempt to acquire it.

Strive not to be a success, but rather to be of value.

The true sign of intelligence is not knowledge but imagination.

God is clever but not dishonest.

Try not to become a man of success but rather a man of value.

Weakness of attitude becomes weakness of character.

Like flowers to a bee, feelings are the silent language of the heart.

For me, it's writing a book and telling people about this story.

I don't like to talk about my dreams. I like to make them happen. I prefer to talk about them when they're done.

I think we need to take on the greed of the billionaire class, a disastrous campaign finance system.

The coward does not know what it means to be alone: an enemy is always standing behind his chair.

Socrates gave no diplomas or degrees, and would have subjected any disciple who demanded one to a disconcerting catechism on the nature of true knowledge.

It's a lot of fun to play someone you don't normally think of yourself as.

Successful people reject rejection.

Just because you’re taught that something’s right and everyone believes it’s right, it don’t make it right.

One thing that is not to be underestimated is American cultures influence on the rest of the world.