Happiness in this world, when it comes, comes incidentally. Make it the objet of pursuit, and it leads us a wild-goose chase, and is never attained. Follow some other object, and very possibly we may find that we have cought happiness without dreaming of it.
去做高尚的事情，不要整天只是做梦。
"The world is a book, and those who do not travel read only one page."
我认为无论发生什么，忠于自己和自己的价值观是很重要的。
True scientific progress is achieved not by mere accumulation of facts, but by the continuous refinement of theories and models.
