垂老不堪生死别，客边日日泪沾衣。
译文：年纪大了经不起生死离别，在异乡的日子里眼泪总打湿衣裳。
人物以品格为重，假如存有一点卑劣污浊的思想，就不能称为顶天立地的丈夫；品格以行为为重，假如做过一件令人惭愧 的事情，也不能尊为泰山北斗的人品。
The best solutions often come from listening—to nature, to science, and to the people on the ground.
苏联是一个恐惧的文明，人们生活在持续的对夜间敲门声的恐惧中。
战略就是选择。战略就是对某些事情说不。
Farmers are the unsung heroes of our global food system.
In mathematics, truth is always relative to the system you're working in.
The development of efficient algorithms is as much an art as it is a science.