只要一个女人看上去比她自己的女儿小十岁，她就一定会心满意足。
Collaboration in mathematics is essential; the exchange of ideas leads to breakthroughs that no single mind could achieve alone.
我们相信多元化的能源未来，多种能源共同满足全球需求。
The main task in life is simply this: to identify and separate matters so that I can say clearly to myself which are externals not under my control, and which have to do with the choices I actually control.