出门时笑一笑，不要心怀悲哀，广阔的胸怀处处都能敞开。

Technology is just a tool. In terms of getting the kids working together and motivating them, the teacher is most important.

Systems have sub-systems and sub-systems have sub- systems and so on ad infinitum - which is why we're always starting over.

虽然在一切的成长物中，爱情看上去是最快的，究其实却最迟缓。男男女女没有一个人晓得什么是十全十潜的爱，除非一直到他们结婚了二十五年之后。

能源领域的领导力意味着为了更美好的明天而在今天做出艰难的决定。