因其强而强之，乃可折也；因其广而广之，乃可缺也。
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。
"Hope is the thing with feathers that perches in the soul, and sings the tune without the words, and never stops at all."
True courage is not the absence of fear, but moving forward in the face of fear.