It is not the length of life, but the depth.

The happiest is the person who suffers the least pain; the most miserable who enjoys the least pleasure.

Life is not measured by the number of breaths we take, but by the moments that take our breath away.

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

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

This terrifying world is not devoid of charms, of the mornings that make waking up worthwhile.

Life must be lived as play.

Hard work, disciplined habits, modesty in living, contentment and cheerfulness.

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

Old minds are like old horses; you must exercise them if you wish to keep them in working order.

Old age, especially an honoured old age, has so great authority, that this is of more value than all the pleasures of youth.

Until you make the unconscious conscious, it will direct your life and you will call it fate.

Those who are easily shocked should be shocked more often.

Nature is not human-hearted.

We cannot live better than in seeking to become better.

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

Work harder on yourself than you do on your job.

Life is not divided into semesters. You don't get summers off and very few employers are interested in helping you find yourself.

Doing nothing is happiness for children and misery for old men.

What would life be if we had no courage to attempt anything?

Everything in the world is about sex except sex. Sex is about power.