Aristotle discovered all the half-truths which were necessary to the creation of science.

The defense of morals is the battle-cry which best rallies stupidity against change.

The world is shocked, or amused, by the sight of saintly old people hindering in the name of morality the removal of obvious brutalities from a legal system.

Order is not sufficient. What is required, is something much more complex. It is order entering upon novelty; so that the massiveness of order does not degenerate into mere repetition; and so that the novelty is always reflected upon a background of system.

Religion is what a person does in his solitariness.

...the self-satisfied dogmatism with which mankind at each period of its history cherishes the delusion of the finality of existing modes of knowledge.

All practical teachers know that education is a patient process of mastery of details, minute by minute, hour by hour, day by day.