Lack of activity destroys the good condition of every human being

Justice means minding one's own business and not meddling with other men's concerns.

Love is a serious mental disease.

The essence of knowledge is self-knowledge.

In order to seek one's own direction, one must simplify the mechanics of ordinary, everyday life.

Better a little which is well done, than a great deal imperfectly.

Each man is capable of doing one thing well. If he attempts several, he will fail to achieve distinction in any.

The good man is the only excellent musician, because he gives forth a perfect harmony not with a lyre or other instrument but with the whole of his life.

Wonder is the beginning of the desire to know the beautiful and the good.

Music is the movement of sound to reach the soul for the education of its virtue.

The most important part of education is proper training in the nursery.

Man is a being in search of meaning.

All thought begins with the recognition that something is out of place.

Pleasure is the greatest incentive to evil.

I prefer nothing, unless it is true.

The most beautiful motion is that which accomplishes the greatest results with the least amount of effort.

A wise ignorance is an essential part of knowledge.

Courage is a kind of salvation.

Wonder is the feeling of the philosopher, and philosophy begins in wonder.