释义：兵法的要旨在于灵活应变，善于了解和掌握军事的本质，行动之前必须先预测敌人的动向。

The real art of conversation is not only to say the right thing at the right place but to leave unsaid the wrong thing at the tempting moment.

释义：当运气不好的时候，即便是金子也会失去光辉；而好运来临时，即使是铁也会显得光彩夺目。