The interplay between analysis and algebra is the driving force behind many breakthroughs in number theory.
以往花费许多力量也不能推动它,今天在水中间却能自在地移动。
死者既已安葬,活着的人就不要长久地哭泣,而应该尽快做事,每个人都做自己能做的事,并用来使大家互利。 
To create is to think in a loud voice.