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.

真相常常令人不适，但它是必要的。

Language is the only homeland that never exiles you.

解释：屋顶是否有漏洞，下面的人才知道。

农业现代化不是口号，而是实实在在的行动。