Not hammer-strokes， but dance of the water sings the pebbles into perfection。

世间许多事情看似结束实则未了，不如顺其自然不再追究。

A problem is in P if it can be solved quickly by a computer, and in NP if a solution can be verified quickly.

I'm not gonna be able to live on this planet if I don't get to express myself.

解释：天地没有完美的功效，圣人没有完备的能力，万物没有完备的用途。