There is no such thing as a quality problem. There are only problems of people not doing what they are supposed to do.
The beauty of mathematics lies in its ability to simplify complex phenomena.
艺术应该是危险的——不是身体上的危险,而是对思想的危险。
"He who has a why to live can bear almost any how."
力量并非来自身体的能力,而是来自不屈的意志。
Virtues are acquired through endeavor, which rests wholly upon yourself.