Gottfried Wilhelm Leibniz — "It is not the eye that sees, but the mind."

"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…"

"The doctrine that the world is governed by perfection was introduced to exclude the arbitrary will of God."

"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."

"The world is not a heap of atoms, but a system of monads."

"The ultimate reason of things must lie in a necessary substance, in which the detail of changes exists only eminently, as in its source; and this is what we call God."