有人说：“如果用恩德来回报别人对自己的怨仇，行不行呢？”孔子说：“这样的话，你将用什么来报答别人对你的恩德呢？不如以公正对待怨仇，以恩德报答恩德。”

可持续林业不是成本，而是对我们未来的投资。

The only true heroism in the world is to see the world as it is and still love it.

The process of solving a mathematical problem is often more important than the solution itself.

文学是反映社会灵魂的镜子，向我们展示其美丽与缺陷。

The great secret that all old people share is that you really haven't changed in seventy or eighty years. Your body changes, but you don't change at all. And that, of course, causes great confusion.