黄河尚有澄清日,岂可人无得运时?
人生起落无常,低谷时别放弃。
The only way to write well is to write badly first.
The best way to predict the future is to invent it.
关于理论最重要的事情是它应该是可测试的。
欲望使人即使到了天堂也会坐立不安。
The future of energy lies in the balance between traditional resources and renewable alternatives.