"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 monads are the true atoms of nature, and, in a word, the elements of things."

"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…"

"Make me the master of education, and I will undertake to change the world."

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