The highest good and solely useful is liberal education.

Sense (for a particular art, science, human being, and so forth) is divided spirit; self-restraint is consequently the result of self-creation and self-destruction.

It is as deadly for a mind to have a system as to have none. Therefore it will have to decide to combine both.

One can only become a philosopher, but not be one. As one believes he is a philosopher, he stops being one.

A definition of poetry can only determine what poetry should be and not what poetry actually was and is; otherwise the most concise formula would be: Poetry is that which at some time and some place was thus named.

If you want to penetrate into the heart of physics, then let yourself be initiated into the mysteries of poetry.

Ideas are infinite, original, and lively divine thoughts.