Reproduction is so primitive and fundamental a function of vital organisms that the mechanism by which it is assured is highly complex and not yet clearly understood. It is not necessarily connected with sex, nor is sex necessarily connected with reproduction.

The art of dancing stands at the source of all the arts that express themselves first in the human person. The art of building, or architecture, is the beginning of all the arts that lie outside the person; and in the end they unite.

All the art of living lies in a fine mingling of letting go and holding on.

Education, whatever else it should or should not be, must be an inoculation against the poisons of life and an adequate equipment in knowledge and skill for meeting the chances of life.

It is only the great men who are truly obscene. If they had not dared to be obscene, they could never have dared to be great.

Man lives by imagination.

The parents have not only to train their children: it is of at least equal importance that they should train themselves.