Thoughts become perception, perception becomes reality. Alter your thoughts, alter your reality.

How many of us persist in a precipitate course which, but for a moment of heedlessness we might never have entered upon, simply because we hate to change our minds.

I wished by treating Psychology like a natural science, to help her become one.

Democracy is still upon its trial. The civic genius of our people is its only bulwark.

There must be something solemn, serious, and tender about any attitude which we denominate religious. If glad, it must not grin or snicker; if sad, it must not scream or curse.

Cramming seeks to stamp things in by intense application immediately before the ordeal. But a thing thus learned can form but few associations.

We must be careful not to confuse data with the abstractions we use to analyse them.