Doubt must be no more than vigilance, otherwise it can become dangerous.

The doctor of the future will give no medicine, but will interest her or his patients in the care of the human frame, in a proper diet, and in the cause and prevention of disease.

We can never judge the lives of others, because each person knows only their own pain and renunciation. It's one thing to feel that you are on the right path, but it's another to think that yours is the only path.

In every tragedy, an element of comedy is preserved. Comedy is just tragedy reversed.

When we do the best that we can, we never know what miracle is wrought in our life, or in the life of another.

Im not in this world to live up to your expectations and youre not in this world to live up to mine.

As soon as you trust yourself, you will know how to live.

Crude classifications and false generalizations are the curse of organized life.

When someone leaves, it's because someone else is about to arrive.

Joy is what happens to us when we allow ourselves to recognize how good things really are.

There is no worse bitterness than to reach the end of your life and realized you have not lived.

The knowledge of oneself will preserve that person from vanity.

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

If you've been playing poker for half an hour and you still don't know who the patsy is, you're the patsy.

Old age is by nature rather talkative.

I never think of the future - it comes soon enough.

Our life is frittered away by detail. Simplify, simplify.

A life not lived for others is not a life.

To be able to look back upon ones life in satisfaction, is to live twice.

Always say 'yes' to the present moment... Surrender to what is. Say 'yes' to life - and see how life starts suddenly to start working for you rather than against you.

Life is more or less a lie, but then again, that's exactly the way we want it to be.