"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."

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

"Although the whole of this life were said to be nothing but a dream and the physical world nothing but a phantasm, I should call this dream or phantasm real enough, if, using reason well, we were neve…"

"The actual world is the most beautiful, because it contains the greatest variety with the greatest order."

"God has chosen the best of all possible worlds, not because it is the most perfect in every respect, but because it is the most perfect in the whole."