The best way to be happy is to give.

The laws of physics are universal, and testing them in extreme environments like the galactic center is essential.

"A writer's duty is to tell the truth, no matter how painful."

不登上高山，就不知道天是多么高远；不亲临深溪，就不知道地是多么深厚。

We must strengthen international cooperation to jointly address the challenges of energy security and climate change.

技术是核心竞争力，我们要不断引进和研发新技术，提升产品质量和生产效率。