关于人性,唯一真正知道的是它是会变化的。
"The only thing that one really knows about human nature is that it changes."
Grow old along with me! The best is yet to be, the last of life, for which the first was made.
你不可能总是得到你想要的,但有时你会得到你需要的。
In a state, the liberty of one citizen is a menace to the others.