One must know oneself. If this does not serve to discover truth, it at least serves as a rule of life and there is nothing better.

The opposite of a fact is falsehood, but the opposite of one profound truth may very well be another profound truth.

The enlightenment is under threat. So is reason. So is truth. So is science, especially in the schools of America.

Truth is the daughter of time, not of authority.

This is the truth: as from a fire aflame thousands of sparks come forth, even so from the Creator an infinity of beings have life and to him return again.