心是指南针，但并不总指向北方。
最伟大的定理往往始于简单的猜想，源于直觉。
User needs are both the starting point and the ultimate goal of product development.
I would not dare to say that there is a direct relation between mathematics and madness, but there is no doubt that great mathematicians suffer from maniacal characteristics.
大家都是被命运所控制的人，一星半点都由不得自己。
有些人感受雨，而其他人只是被淋湿。
In mathematics, the art of proposing a question must be held of higher value than solving it.
Philosophy is the eternal pursuit of wisdom.
What's terrible is to pretend that second-rate is first-rate. To pretend that you don't need love when you do; or you like your work when you know quite well you're capable of better.