Gottfried Wilhelm Leibniz — "Every distinct perception implies infinity."

"I do not believe that a world without evil, preferable in order to ours, is possible; otherwise it would have been preferred. It is necessary to believe that the mixture of evil has produced the great…"

"The universe is a machine divinely constructed."

"Nothing is without a reason."

"There is nothing waste, nothing sterile, nothing dead in the universe; no chaos, no confusions, save in appearance."

"The soul follows its own laws, and the body likewise follows its own laws; and they agree with each other in virtue of the pre-established harmony."