I believe there is no source of deception in the investigation of nature which can compare with a fixed belief that certain kinds of phenomena are IMPOSSIBLE.

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

The greatest discovery of the 19th century was not in the realm of the physical sciences, but the power of the subconscious mind touched by faith. Any individual can tap into an eternal reservoir of power that will enable them to overcome any problem that may arise. All weaknesses can be overcome, bodily healing, financial independence, spiritual awakening, and prosperity beyond your wildest dreams. This is the superstructure of happiness.

Geniuses are commonly believed to excel other men in their power of sustained attention . . . But it is their genius making them attentive, not their attention making geniuses of them.

An impression which simply flows in at the pupil's eyes or ears and in no way modifies his active life, is an impression gone to waste. It is physiologically incomplete... Its motor consequences are what clinch it.

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

Theory must mediate between all previous truths and certain new experiences