The only way to learn mathematics is to do mathematics.
学习数学的唯一方法就是做数学。
真正的音乐是发自内心的，不是做给别人看的。
史记
The greatest enemy of knowledge is not ignorance, it is the illusion of knowledge.
The key to solving complex problems is breaking them down into simpler ones.
The true measure of our industry's success will be how we balance economic growth with environmental stewardship.
人是万物的尺度：对于存在的事物，它们存在；对于不存在的事物，它们不存在。