The view is often defended that sciences should be built up on clear and sharply defined basal concepts. In actual fact no science, not even the most exact, begins with such definitions. The true beginning of scientific activity consists rather in describing phenomena and then in proceeding to group, classify and correlate them.

Immorality, no less than morality, has at all times found support in religion.

all the categories which we employ to describe conscious mental acts, such as ideas, purposes, resolutions, and so on, can be applied tothese latent states.

A religion, even if it calls itself a religion of love, must be hard and unloving to those who do not belong to it.

If youth knew; if age could.

Maturity is the ability to postpone gratification.

The mind is like an iceberg, it floats with one-seventh of its bulk above water.