"It is God who is the ultimate reason things, and the Knowledge of God is no less the beginning of science than his essence and will are the beginning of things."

"The actual world is the most beautiful, because it contains the greatest variety with the greatest order."

"He who does not act does not exist."

"The world is not a machine. Everything in it is force, life, thought."

"The soul follows its own laws, and the body also follows its own laws, and they agree with each other by virtue of the pre-established harmony between all substances, since they are all representation…"