It is the heart which perceives God and not the reason.

Lust is the source of all our actions, and humanity.

Christian piety annihilates the egoism of the heart; worldly politeness veils and represses it.

As men are not able to fight against death, misery, ignorance, they have taken it into their heads, in order to be happy, not to think of them at all.

The parts of the universe ... all are connected with each other in such a way that I think it to be impossible to understand any one without the whole.

It is right that what is just should be obeyed. It is necessary that what is strongest should be obeyed.

We must learn our limits. We are all something, but none of us are everything.