Invention is the mother of necessity.

人类行为的首要原则是，一个人会做他认为能满足自己欲望的事情。

"Purpose gives meaning to mental activity."

我不等待机会，我创造机会。

It is the duty of the inventor to make his work as useful and as accessible as possible to the public.

I don't let the world change my spirit.

Coal is China's main energy source and will remain the cornerstone of China's energy security for a long time to come.

传统养殖方法与现代技术的结合是成功的关键。

生活就是忍受，在混乱中找到意义，尽管痛苦也要继续前进。