The greatest discovery of my generation is that a human being can alter his life by altering his attitudes.

In modern eyes, precious though wars may be they must not be waged solely for the sake of the ideal harvest. Only when forced upon one, is a war now thought permissible.

Every way of classifying a thing is but a way of handling it for some particular purpose.

In the deepest heart of all of us there is a corner in which the ultimate mystery of things works sadly.

O my Bergson, you are a magician, and your book is a marvel, a real wonder in the history of philosophy . . . In finishing it I found . . . such a flavor of persistent euphony, as of a rich river that never foamed or ran thin, but steadily and firmly proceeded with its banks full to the brim.

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

We must not just patch and tinker with life. We must keep renewing it. Embrace novelty and uniqueness.