The largely objective character of beauty is further indicated by the fact that to a considerable extent beauty is the expression of health. A well and harmoniously developed body, tense muscles, an elastic and finely toned skin, bright eyes, grace and animation of carriage- all these things which are essential to beauty are the conditions of health.

I regard sex as the central problem of life. And now that the problem of religion has practically been settled, and that the problem of labor has at least been placed on a practical foundation, the question of sex—with the racial questions that rest on it—stands before the coming generations as the chief problem for solution. Sex lies at the root of life, and we can never learn to reverence life until we know how to understand sex.

The mother is really a more immediate parent than the father because one is born from the mother, and the first experience of any infant is the mother.

There is nothing more fragile than civilization.

The mathematician has reached the highest rung on the ladder of human thought.

Even the most scientific investigator in science, the most thoroughgoing Positivist, cannot dispense with fiction; he must at least make use of categories, and they are already fictions, analogical fictions, or labels, which give us the same pleasure as children receive when they are told the "name" of a thing.

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.