真正的科学进步不是通过简单的事实积累实现的，而是通过理论和模型的不断精炼。

解析：用功在于为善之心真切。

Sustainable development requires balancing economic benefits with environmental protection.

"I like looking nice, but I always put comfort over fashion. I don’t find thin girls attractive; be happy and healthy. I’ve never had a problem with the way I look. I’d rather have lunch with my friends than go to a gym."

哲学的任务不是提供答案，而是澄清问题。