In youth we may have an absolutely new experience, subjective or objective, every hour of the day. Apprehension is vivid, retentiveness strong, and our recollections of that time, like those in a time spent in rapid and interesting travel, are of something intricate, multitudinous, and long-drawn-out. But as each passing year converts some of this experience into automatic routine which we hardly note at all, the days and the weeks smooth themselves out in recollection to a contentless unit, and the years grow hollow and collapse.

The word 'cause' is an altar to an unknown god.

The deepest hunger in human beings is the desire to be appreciated.

[Religion is] the attempt to be in harmony with an unseen order of things.

The first lecture in psychology that I ever heard was the first I ever gave.

No reception without reaction, no impression without correlative expression, -this is the great maxim which the teacher ought never to forget.

When you have to make a choice and don't make it, that is in itself a choice.