Gottfried Wilhelm Leibniz — "There is a world of creatures, living beings, animals, entelechies, souls, in th…"

"The passing condition which involves and represents a multiplicity in the unity, or in the simple substance, is nothing else than what is called perception. This should be carefully distinguished from…"

"Monads have no windows through which anything could enter or depart."

"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."

"There is nothing waste, nothing sterile, nothing dead in the universe; no chaos, no confusions, save in appearance."

"It is unworthy of excellent men to lose hours like slaves in the labour of calculation which could safely be relegated to anyone else if machines were used."