The best way to learn something is to teach it.
管他呢，干就完了。
I'm not a role model, I'm a role player.
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。
"The pursuit of knowledge is a lifelong journey, and there is always more to learn."