选择最有用的生活方式，习惯会使其变得最令人愉悦。
Choose the life that is most useful， and habit will make it the most agreeable.
【译文】 孔子说：“不怕没人了解自己，就怕自己没有能力。”
教师必须为形成较好人类而献出一切。
Mathematics is not just about numbers, equations, computations, or algorithms: it is about understanding.
A man's work is nothing but this slow trek to rediscover, through the detours of art, those two or three great and simple images in whose presence his heart first opened.
There is no absolute security, only relative risk control.
Technology should serve people, not the other way around.