在真实与不真实之间，在真与假之间，没有严格的区别。一件事不一定是非真即假；它可以是既真又假。

煤炭行业的未来在于智能化和数字化转型。

所以君子严于律己.宽以待人,而平庸的人却宽以待己.严于律人。

The study of computational complexity is not just about solving problems, but also about understanding the limits of what can be computed.

The dangerous man is the one who has only one idea, because then he'll fight and die for it.

一段不幸的婚姻不是缺乏爱，而是缺乏友谊。