From Plato and Socrates to Spinoza and Carnap.

Man is the measure of all things.

The greatest wealth is to live content with little.

Wonder is the beginning of wisdom.

Healing is a matter of time, but it is sometimes also a matter of opportunity.

Love is composed of a single soul inhabiting two bodies.

Fear cannot be without hope nor hope without fear.

Parents wonder why the streams are bitter, when they themselves have poisoned the fountain.

Beauty in things exists in the mind which contemplates them.

Talent hits a target no one else can hit; Genius hits a target no one else can see.

Reason is like an open secret that can become known to anyone at any space;

Experience by itself is not science.

Education is not preparation for life; education is life itself.

There is nothing deep down inside us except what we have put there ourselves.

In science there are no 'depths'; there is surface everywhere.

But is it the end?