当你拥有另一个人知道他需要的智慧时,你就会无偿地给予它。但当对方还不知道他需要你的智慧时,你就保守秘密。食物只对饥饿的人来说看起来才好吃。
(When you have wisdom that another person knows that he needs, you give it freely. But when the other person doesn't yet know that he needs your wisdom you keep it to yourself. Food only looks good to a hungry man.)