Efficiency is doing things right; effectiveness is doing the right things.
效率是把事情做对；效能是做对的事情。
我们必须平衡能源需求与保护地球的责任。
幸福很少缺席；是我们不知道它的存在。
The future of coal lies not in its quantity but in how cleanly and efficiently we can use it.
我是一个喜欢非凡的人。
A speculator is a man who observes the future, and acts before it occurs.
绘画是一种在纸上思考的方式。