History is the science of what never happens twice.

It seems to me that the soul, when alone with itself and speaking to itself, uses only a small number of words, none of them extraordinary.

If what has happened in the one person were communicated directly to the other, all art would collapse, all the effects of art would disappear.

Love is acting stupid together.

A man is a poet if difficulties inherent in his art provide him with ideas; he is not a poet if they deprive him of ideas.

The universe is built on a plan the profound symmetry of which is somehow present in the inner structure of our intellect.

We are enriched by our reciprocate differences.