The most comfortable chair is the one I use myself when I have visitors.

The purpose of abstraction is not to be vague, but to create a new semantic level in which one can be absolutely precise.

汽车工业的未来是属于那些敢于创新、敢于突破的企业。

要给儿童提供一个使他们得到满足的环境，必须努力了解儿童的需要。