在任何比赛中，自信都是关键。

I’m not a guy that’s going to let my love for the present down.

孔子说：“我十五岁立志于学习，三十岁有所建树，四十岁不困惑，五十理解自然规律，六十明辨是非，七十随心所欲，不违规。”

The chemical industry is the backbone of modern civilization, and we must treat it with the responsibility it deserves.