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。
The meaning of life is that it stops.
In the end, we are all defined by the choices we make.
The best scientists are those who remain humble in the face of nature's complexity.