Philosophy consists mostly of kicking up a lot of dust and then complaining that you can't see anything.

But it is the knowledge of necessary and eternal truths which distinguishes us from mere animals, and gives us reason and the sciences, raising us to knowledge of ourselves and God. It is this in us which we call the rational soul or mind.

I do not conceive of any reality at all as without genuine unity.

I hold that it is only when we can prove everything we assert that we understand perfectly the thing under consideration.

The knowledge which we have acquired ought not to resemble a great shop without order, and without an inventory; we ought to know what we possess, and be able to make it serve us in need.

God makes nothing without order, and everything that forms itself develops imperceptibly out of small parts.

Justice is charity in accordance with wisdom.