"If you live for the next world, you get this one in the deal; but if you live only for this world, you lose them both."

"If we find ourselves with a desire that nothing in this world can satisfy, the most probable explanation is that we were made for another world."

"Friendship is unnecessary, like philosophy, like art. It has no survival value; rather it is one of those things which give value to survival."

"Education without values, as useful as it is, seems rather to make man a more clever devil."

"If nothing in this world satisfies me, perhaps it is because I was made for another world."

"Love is never wasted, for its value does not rest upon reciprocity."