For morality life is a war, and the service of the highest is a sort of cosmic patriotism which also calls for volunteers.

Mankind's common instinct for reality has always held the world to be essentially a theatre for heroism. In heroism, we feel, life's supreme mystery is hidden. We tolerate no one who has no capacity whatever for it in any direction. On the other hand, no matter what a man's frailties otherwise may be, if he be willing to risk death, and still more if he suffer it heroically, in the service he has chosen, the fact consecrates him forever.

In all primary school work the principle of multiple impressions is well recognized.

Our beliefs and our attention are the same fact.

One hearty laugh together will bring enemies into a closer communion of heart than hours spent on both sides in inward wrestling with the mental demon of uncharitable feeling.

A good hypothesis in science must have other properties than those of the phenomenon it is immediately invoked to explain, otherwise it is not prolific enough.

Modern man . . . has not ceased to be credulous . . . the need to believe haunts him.