商业应该是有趣的。如果它不有趣,那你就做错了什么。
The most important thing in mathematics is to understand the concepts, not just to memorize the formulas.
Love is the only thing that can fill the emptiness of existence.
不曾有过一个女儿这样爱过他的父亲,也不曾有一个父亲这样被他女儿爱。