Gottfried Wilhelm Leibniz — "We live in the best of all possible worlds."

"The universe is a plenum, in which all bodies are connected, and each affects all the others."

"To love is to be delighted by the happiness of someone, or to experience pleasure upon the happiness of another. I define this as true love."

"I hold that the mark of a genuine idea is that its possibility can be proved, either a priori by conceiving its cause or reason, or a posteriori when experience teaches us that it is actual in nature."

"Nihil est sine ratione. There is nothing without a reason."

"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…"