Be the change you wish to see in the world.
定言命令只有一条,那就是:要只按照你同时能够愿意它成为一条普遍法则的那个准则去行动。
"We are all in the gutter, but some of us are looking at the stars."
引力解释了行星的运动,但它无法解释是谁让行星运动起来的。