法律体系的存在取决于官员对次要规则的接受。

And when you do I want you to know this， remember this: there is no such thing as failure. Failure is just life trying to move us in another direction. Now when you’re down there in the hole， it looks like failure. So this past year I had to spoon feed those words to myself.

创新是解决世界最紧迫问题的关键。

Life seems to go on without effort when I am filled with music. ― George Eliot, The Mill on the Floss

过去越黑暗，未来越光明。

解释：齐国是强国，利用它的强大进攻宋国，让他逞强，燕国就可以乘机打败齐国；齐国是大国，利用它的大国野心吞并宋国，增加土地，燕国就可以乘机进攻。