You can't go back and change the beginning, but you can start where you are and change the ending.

Silence is very important. The silence is just as important as the notes.

可持续性不是一种选择；它是我们对下一代的责任。

怀疑是智慧的开始。

不过是君主不把它［爱人利人］用在政事上,士大夫也不把它付诸行动罢了。