Some of the old laws of Israel are clearly savage taboos of a familiar type thinly disguised as commands of the Deity.

Small minds cannot grasp great ideas; to their narrow comprehension, their purblind vision, nothing seems really great and important but themselves.

By religion, then, I understand a propitiation or conciliation of powers superior to man which are believed to direct and control the course of nature and of human life.

The world cannot live at the level of its great men.

The moral world is as little exempt as the physical world from the law of ceaseless change, of perpetual flux.

Even the recognition of an individual whom we see every day is only possible as the result of an abstract idea of him formed by generalization from his appearances in the past.

The man of science, like the man of letters, is too apt to view mankind only in the abstract, selecting in his consideration only a single side of our complex and many-sided being.