Science is the outcome of being prepared to live without certainty and therefore a mark of maturity. It embraces doubt and loose ends.

It's only terrible to have nothing to wait for.

The historian looks backward. In the end he also believes backward.

Imagination and fiction make up more than three quarters of our real life.

A man who dares to waste one hour of time has not discovered the value of life.

Wrinkles are engraved smiles.

Do not wait for the last judgment. It comes every day.

Quick sensitivity is inseperable from a ready understanding.

Open your eyes, look within. Are you satisfied with the life you're living?

The more you live in the present moment, the more the fear of death disappears.

I like nonsense, it wakes up the brain cells. Fantasy is a necessary ingredient in living.

Let silence take you to the core of life.

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

I desire to live in peace and to continue the life I have begun under the motto 'to live well you must live unseen'

In the long history of humankind (and animal kind, too) those who learned to collaborate and improvise most effectively have prevailed

I am not young enough to know everything.

History is a set of lies agreed upon.

A life spent making mistakes is not only more honorable, but more useful than a life spent doing nothing.

The pleasure of the moment begins to wither almost as soon as it blossoms; our pleasures are soon swallowed up in time's relentless torrent.

Life shrinks or expands in proportion to one's courage.

We make up horrors to help us cope with the real ones.