创新不是发明全新的东西，而是改进已经存在的东西。

不要弄乱我的圆。（传说在被罗马士兵杀害前的最后一句话）

You are too generous to trifle with me. If your feelings are still what they were last April, tell me so at once. My affections and wishes are unchanged, but one word from you will silence me on this subject forever.

理论物理学不仅仅是解决问题，更是要找到正确的问题去解决。