"Every substance is a perpetual living mirror of the universe."

"God alone is the primary unity, or the original simple substance, of which all created monads are products."

"For since it is impossible for a creature to be perfect, the universe would be even less perfect if it contained only perfect creatures."

"The happier the man, the less he needs to be amused; like a healthy man who does not need to be drugged."

"He who hasn't tasted bitter things hasn't earned sweet things."