I have to be alone very often. I'd be quite happy if I spent from Saturday night until Monday morning alone in my apartment. That is how I refuel.
能源的未来不是要在煤炭和可再生能源之间做出选择,而是找到正确的平衡。
The past is a place of reference, not a place of residence.
To do mathematics is to engage in an act of creation and discovery simultaneously.
【释义】:父亲不慈爱,子女就不会孝顺;兄长不友爱,弟弟便不会恭敬。  
也许每一天并不都是好的,但每一天都有一些好的东西。