Better keep yourself clean and bright; you are the window through which you must see the world.

Nothing great in the world has ever been accomplished without passion.

Life consists not in holding good cards but in playing those you hold well.

I have no money, no resources, and no hope. I am the happiest man alive.

History is a vast early warning system.

We first make our habits, and then our habits make us.

The traveler sees what he sees, the tourist sees what he has come to see.

You are remembered for the rules you break.

He is happiest, be he king or peasant, who finds peace in his home.

Travel becomes a strategy for accumulating photographs.

Laws are like sausages, it is better not to see them being made.

Courage is knowing what not to fear.

Independence is happiness.

Freedom means the opportunity to be what we never thought we would be.

The best way to cheer yourself up is to try to cheer somebody else up.

Progress was all right. Only it went on too long.

The home is the chief school of human virtues.

We aim above the mark to hit the mark.

Work is much more fun than fun.

A photograph is a secret about a secret. The more it tells you the less you know.

To find out what one is fitted to do, and to secure an opportunity to do it, is the key to happiness.

Hope is being able to see that there is light despite all of the darkness.

There are two ways of spreading light: to be the candle or the mirror that reflects it.

We cannot live only for ourselves. A thousand fibers connect us with our fellow men.

It doesn't matter who my father was; it matters who I remember he was.

He who knows that enough is enough will always have enough.

Many a trip continues long after movement in time and space has ceased.

Childhood is a short season.

The formula for success: rise early, work hard, strike oil.

I have never in my life learned anything from any man who agreed with me.

Each day is the scholar of yesterday.

No amount of experimentation can ever prove me right; a single experiment can prove me wrong.

Immorality: the morality of those who are having a better time.

There are no shortcuts in evolution.

Hope is the only bee that makes honey without flowers.

Principles have no real force except when one is well-fed.

A friend is one who knows you and loves you just the same.

Remember that the most valuable antiques are dear old friends.

Be not simply good - be good for something.

My fellow Americans, ask not what your country can do for you, ask what you can do for your country.

Gratitude is the fairest blossom that springs from the soul.

My motto is: Contented with little, yet wishing for more.

Unless we remember we cannot understand.

Appearances are a glimpse of the unseen.

The life of the dead is placed in the memory of the living.

Without craftsmanship, inspiration is a mere reed shaken in the wind.

Judge a man by his questions rather than his answers.

Challenging the meaning of life is the truest expression of the state of being human.

There is no influence like the influence of habit.