For, above all, I hold a notion of possibility and necessity according to which there are some things that are possible, but yet not necessary, and which do not really exist. From this it follows that a reason that always forces a free mind to choose one thing over another (whether that reason derives from the perfection of a thing, as it does in God, or from our imperfection) does not eliminate our freedom.

Nature does not make leaps.

A great doctor kills more people than a great general.

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

Everything that is possible demands to exist.

There is a certain destiny of everything, regulated by the foreknowledge and providence of God in His works.

The pleasure we obtain from music comes from counting, but counting unconsciously. Music is nothing but unconscious arithmetic.