To find out what happens to a system when you interfere with it, you have to interfere with it (not just passively observe it).
要了解当你干预一个系统时会发生什么，你必须干预它（而不仅仅是被动观察）。
我们今天开采的岩石将建设明天的基础设施。
Coal’s future depends on our ability to make it cleaner and more efficient.
Be strict with yourself and forgiving of others. The reverse is hell for everyone.
没有完美，只有生活。
教育学中的实验方法不仅是研究的工具，更是所有教育实践的基本原则。