你的声音很重要，使用它。
Your voice matters, use it.
Mathematics is the language with which God has written the universe.
【讲解】：古代读书人学习的目的，在于修养自己的学问道德（然后去为国家、人民服务），现在读书人学习的目的，在于给别人看（希望得到别人的赞美和任用）。
The only way to deal with an unfree world is to become so absolutely free that your very existence is an act of rebellion.
麦克斯韦方程式不足以设计电动机不是计算机的错。
数学的研究对科学的发展就像空气或水一样。
我不是一个会回头看并想着“我希望我当时做得不同”的人。
The future belongs to those who can adapt to change quickly.
History does not long entrust the care of freedom to the weak or the timid.