He who allows oppression shares the crime.

Many times what cannot be refuted by arguments can be parried by laughter.

Now I believe I can hear the philosophers protesting that it can only be misery to live in folly, illusion, deception and ignorance, but it isn't -it's human.

Give light, and the darkness will disappear of itself.

The opinion formulated by the Church has more value in my eyes than human reasons, whatever they may be.

Great abundance of riches cannot be gathered and kept by any man without sin.

The more ignorant, reckless and thoughtless a doctor is, the higher his reputation soars even amongst powerful princes.