爱是对人类存在问题的唯一理智和令人满意的回答。
Love is the only sane and satisfactory answer to the problem of human existence.
Human beings, viewed as behaving systems, are quite simple. The apparent complexity of our behavior over time is largely a reflection of the complexity of the environment in which we find ourselves.
释义：贫穷和地位低下不是什么耻辱的事，但因为贫穷和地位低下而向他人谄媚奉承，乞求得到施舍，就真是耻辱。