In fact we say that an intention is good, that is, right in itself, but that an action does not bear any good in itself but proceeds from a good intention. Whence when the same thing is done by the same man at different times, by the diversity of his intention, however, his action is now said to be good, now bad.

I preferred the weapons of dialectic to all the other teachings of philosophy, and armed with these, I chose the conflicts of disputation rather than the trophies of war.

The beginning of wisdom is found in doubting; by doubting we come to the question, and by seeking we may come upon the truth.

In doubting we come to inquiry; by inquiry we perceive the truth.

The key to wisdom is this - constant and frequent questioning, for by doubting we are led to question and by questioning we arrive at the truth.

Nothing can be believed unless it is first understood; and that for any one to preach to others that which either he has not understood nor they have understood is absurd.

God considers not the action, but the spirit of the action.