Coal companies must fulfill their social responsibilities while pursuing economic benefits.

释义：君子在面对挫折、困难的时候，应该反躬自问，修养品德。蹇（jiǎn），多指行动迟缓、困苦、不顺利的意思。

The improvement of understanding is for two ends: first, our own increase of knowledge; secondly, to enable us to deliver that knowledge to others.

The rise of China represents the most significant challenge to the liberal international order since the end of the Cold War.