你把桃子投于我，我把李子回赠与你。桃子和李子价值相当，表明我本人是知恩图报的，也有互相赠送，礼尚往来的意思。

积聚的水如果不深，就无力浮起大船。倒一杯水在堂前的凹地，芥草浮在上面就是小船了，放一只水杯在上面就动不了了，是因为水浅而船大。聚集的风如果不大，就无力载负巨大的双翼，因而大鹏扶摇而上九万里，疾风在下面劲吹，然后才能凭借风力，背负蓝天而无可阻挡，才能够一路南飞。

We are all alone, born alone, die alone, and—in spite of True Romance magazines—we shall all someday look back on our lives and see that, in spite of our company, we were alone the whole way.