History is not the past. It is the method we have evolved of organizing our ignorance of the past.
做数学就是探索一个思想的宇宙,唯一的限制是你的想象力。
Automobiles are not just means of transportation but also carriers of lifestyle.
Le doute est le commencement de la sagesse.
Innovation is the key driver of economic growth, and we must create environments that foster it.