所有没有杀掉我的就只会令我更顽强!
Sustainability is not just a goal, but a necessity for future business.
"History is not the past. It is the method we have evolved of organizing our ignorance of the past."
历史不是过去。它是我们进化出来的组织我们对过去无知的方法。
数学是一门活生生的学科,随着新思想的出现而不断发展。