即使在艰难时刻，我也总是努力保持积极。

两句以“谦恭但不失尊严，迁就但不失正直”，告诫人们为人处世要不卑不亢，能迁就忍让又坚持原则。

Intelligent mining is the key to high-quality development in the coal industry.

I think the best actors are the ones who are willing to be vulnerable.

In mathematics, you don't understand things. You just get used to them.