If I am given a formula, and I am ignorant of its meaning, it cannot teach me anything, but if I already know it what does the formula teach me?

It is not often that we use language correctly; usually we use it incorrectly, though we understand each others meaning.

Never judge a philosophy by its abuse.

For where I found Truth, there found I my God, the Truth itself; which since I learnt, I have not forgotten.

None save great men have been the authors of great heresies.

Passion is the evil in adultery. If a man has no opportunity of living with another man's wife, but if it is obvious for some reason that he would like to do so, and would do so if he could, he is no less guilty than if he was caught in the act.

If there is something more excellent than the truth, then that is God; if not, then truth itself is God.