Our beliefs are really rules for action.

Every claim creates an obligation.

The worst thing that can happen to a good teacher is to get a bad conscience about her profession because she feels herself hopeless as a psychologist.

The discovery of the power of our thoughts will prove to be the most important discovery of our time

Need and struggle are what excite and inspire us; our hour of triumph is what brings the void.

In order to disprove the assertion that all crows are black, one white crow is sufficient.

At bottom, the whole concern of religion is with the manner of our acceptance of the universe.