化学是一门研究物质性质及其变化的科学。

Of all the means which wisdom acquires to ensure happiness throughout the whole of life, by far the most important is friendship.

出自《论语·公冶长》。做事情，一定要通过反复的思考，再去行动。

运气不好时金子可能变成铁，运气到来时铁也可能变成金。

You can't be that kid standing at the top of the waterslide, overthinking it. You have to go down the chute.

产品的质量就是企业的尊严。