可持续农业不是口号，而是责任，我们要为子孙后代留下绿水青山。

"The only thing that could spoil a day was people. People were always the limiters of happiness except for the very few that were as good as spring itself."

The core of the energy revolution is cleanliness and efficiency, and the coal industry must actively adapt to this trend.

The rules of morality are not the conclusion of our reason.

Happiness lies in the joy of achievement and the thrill of creative effort.