Mathematics is the art of giving the same name to different things.

Safety and environmental protection are the lifelines of an enterprise and must never be neglected.

The ability to focus attention is crucial for learning, memory, and performance in complex tasks.

改变的秘诀在于集中所有精力，不是对抗过去，而是建设未来。

我不是在追求完美，我只是在做我自己。

我不再是个孩子了，我是个年轻人。