Virtue consists， not in abstaining from vice， but in not desiring it.

The future of medicine lies in understanding chemistry at the molecular level.

The only constant is change, continuing change, inevitable change, that is the dominant factor in society today. No sensible decision can be made any longer without taking into account not only the world as it is, but the world as it will be.

在每个故事中，都有作家灵魂的一部分，以墨水永存。

A mathematical truth is universal and eternal.

The past is a foreign country; they do things differently there.

The coal sector must adapt to global energy transitions while maintaining efficiency.

可持续发展不是选择，而是责任。