Gottfried Wilhelm Leibniz — "The actual world is the most perfect of all possible worlds."

"There are also two kinds of truths: those of reasoning and those of fact. Truths of reasoning are necessary and their opposite is impossible; truths of fact are contingent and their opposite is possib…"

"This interconnection or accommodation of all created things to each other, and each to all the others, brings it about that each simple substance has relations that express all the others, and consequ…"

"Each simple substance or Monad is a mirror of the universe according to its point of view."

"There is a certain destiny of everything, regulated by the foreknowledge and providence of God, who has established an infallible connection between the antecedent and the consequent."

"I do not conceive of any reality at all as without genuine unity."