仕则优则学，学而优则仕。
做好了官，有余力就要学习，学习好了，有余力就去做官。
The language of mathematics is universal, transcending cultural and linguistic barriers.
Number is the ruler of forms and ideas， and the cause of gods and daemons.
"I tend to think that the camera is much more truthful than the human eye."
写作的艺术就是发现你所相信的艺术。