The truth of history is often found in its silences.
Most people are afraid of change，but if you look at it as something you can count on，then it can be a comfort.There's not many things you can really count on.
唯一真正的知识是自知之明。
In republican governments, men are all equal; equal they are also in despotic governments: in the former, because they are everything; in the latter, because they are nothing.
移动的手指在书写；一旦写下，便继续前行：无论是你的虔诚还是智慧，都无法引诱它回来取消半行，你的泪水也无法洗去一个字。
学习数学的最好方法就是做数学。
The most important thing you can do to achieve your goals is to make sure that as soon as you set them, you immediately begin to create momentum.