译文：结交朋友如果是为了脸面有光，那不如结交对自己有身心有益的朋友；教导子弟求取富贵荣华，不如告诉子弟们养成良好的品行。赏析：《大学》一书中说：自天子以至于庶人，壹是皆以修身为本。意思是说，不管是天子还是百姓，都应该把修身作为自己的立身之本。做事就是做人，人做好了，事情自然就会成。

写作就是呼吸，就是生活，就是最充分意义上的存在。

广义相对论已经通过了我们所有的测试，甚至在超大质量黑洞附近也是如此。

The most powerful thing you can be is yourself.

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.