Quality is not a assurance; it is a proof.
技术将重新定义我们如何开采和利用煤炭资源。
There is a violence in being known, and a violence in remaining unknown.
数学是科学的女王，而数论是数学的女王。
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.