Dance like nobody's watching, love like you've never been hurt.

We must, however, acknowledge, as it seems to me, that man with all his noble qualities still bears in his bodily frame the indelible stamp of his lowly origin.  

物理学的目的不是描述自然，而是理解自然。

未来的竞争不是价格的竞争，而是用户体验的竞争。