Wrinkles should merely indicate where the smiles have been.

One day, in retrospect, the years of struggle will strike you as the most beautiful.

People do not like to think. If one thinks, one must reach conclusions. Conclusions are not always pleasant.

A tragedy means always a man's struggle with that which is stronger than man.

Don't be too timid and squeamish about your actions. All life is an experiment. The more experiments you make the better.

A beautiful thing never gives so much pain as does failing to hear and see it.

If it is worth doing, it is worth overdoing.

Today, more than ever before, life must be characterized by a sense of Universal responsibility, not only nation to nation and human to human, but also human to other forms of life.

How people treat you is their karma; how you react is yours.

History is a set of lies agreed upon.

Life is pure adventure, and the sooner we realize that, the quicker we will be able to treat life as art.

Take a chance! All life is a chance. The man who goes farthest is generally the one who is willing to do and dare.

As you go through life, you've got to see the valleys as well as the peaks.

Without a measureless and perpetual uncertainty, the drama of human life would be destroyed.

Life's a journey, not a destination.

I think it's much more interesting to live not knowing than to have answers which might be wrong.

It is not the strongest of the species that survives, nor the most intelligent that survives. It is the one that is the most adaptable to change.

The first forty years of life give us the text; the next thirty supply the commentary on it.

Three things have been difficult to tame: the oceans, fools, and women. We may soon be able to tame the oceans; fools and women will take a little longer.

Your purpose in life is to find your purpose and give your whole heart and soul to it.

The behavior of a human being in sexual matters is often a prototype for the whole of his other modes of reaction in life.