There is but one unconditional commandment ... to bring about the very largest total universe of good which we can see.

Fear of life in one form or another is the great thing to exorcise.

It is very important that teachers should realize the importance of habit.

We are mere bundles of habits.

Psychology saves us from mistakes. It makes us more clear as to what we are about. We gain confidence in respect to any method which we are using as soon as we believe that it has theory as well as practice at its back.

The mind of your own enemy, the pupil, is working away from you, as keenly and eagerly as is the mind of the commander on the other side from the scientific general. Just what the respective enemies want and think, and what they know or do not know, are as hard things for the teachers as for the general to find out.

The greatest revolution of our generation is the discovery that human beings, by changing the inner attitudes of their minds, can change the outer aspects of their lives.