文字的力量不在于它们的意义，而在于它们唤起情感的能力。

I have often been asked how my plays come about. I cannot say. Nor can I ever sum up my plays, except to say that this is what happened. That is what they said. That is what they did.

研究不仅仅是回答问题，还要提出正确的问题。

高分子化学的引入开辟了一个新的材料世界，其重要性可与发现新大陆相媲美。