Love consists in giving without getting in return; in giving what is not owed, what is not due the other. That's why true love is never based, as associations for utility or pleasure are, on a fair exchange.
爱在于付出而不求回报;给予别人不欠别人的,别人也不欠你的。这就是为什么真爱从来就不是建立在公平交换的基础上的,就像功利或快乐的联想一样。