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

"It is not absurd for discerning Europeans . . . to see something today which is not adequately known by the Chinese erudites, and to be able to interpret their ancient books better than the erudites t…"

"The monads have no parts."

"Nature has established patterns originating in the return of events, but only for the most part. New illnesses flood the human race, so that no matter how many experiments you have done on corpses, yo…"

"Nothing is necessitated whose opposite is possible."