The very existence of libraries affords the best evidence that we may yet have hope for the future of man.

There's only one corner of the universe you can be certain of improving，and that's your own self.

我不是那种会让对篮球比赛的爱减少的人。

对高分子的研究不仅仅是化学的一个分支；它是化学科学的一个新维度。