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.

Between two evils, I always pick the one I never tried before.

How can I go forward when I don't know which way I'm facing?

We must be willing to fail and to appreciate the truth that often 'Life is not a problem to be solved, but a mystery to be lived.'

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

Anyone who lives within their means suffers from a lack of imagination.

Don't part with your illusions. When they are gone you may still exist, but you have ceased to live.

True spirituality has its basis in moral life, which in turn is based on contem-plation.

For life in general, there is but one decree: youth is a blunder, manhood a struggle, old age a regret.

When I let go of what I am, I become what I might be.

Exceptional claims demand exceptional evidence.

I restore myself when I'm alone.

Life can only be understood backwards; but it must be lived forwards.

Not all things are to be discovered; many are better concealed.

Humility is really important because it keeps you fresh and new.

The more I see, the less I know for sure.

Is it not enough that 'things are cruel and blind'? Must we also be cruel and blind?

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

Take care of your body. It's the only place you have to live.

In the survival of favoured individuals and races, during the constantly-recurring struggle for existence, we see a powerful and ever-acting form of selection.

Luxury is not a necessity to me, but beautiful and good things are.