释义：与敌人交战之前，必须仔细分析和了解敌人的情况，然后才能制定作战计划和出兵，以确保行动的成功。
You will never be happy if you continue to search for what happiness consists of. You will never live if you are looking for the meaning of life.
It's not whether you're right or wrong that's important, but how much money you make when you're right and how much you lose when you're wrong.