So here's a great puzzle: in a universe ruled by the second law of thermodynamics, 所以，这就是个大谜团：在宇宙中，在被热力学第二定律规范下， how is it possible to generate the sort of complexity I've described, 怎么样才有可能产生这种我刚才论述的
Prepared Remarks of President Barack ObamaWeekly AddressSaturday, August 8th, 2009 On Friday, we received better news than we expected about the state of our economy. We learned that we lost 247,000 j
The Meaning of Honor The word honor is often associated with admirable career success, brilliant academic achievement, great social contribution and high position. When speaking of honor, one has im
And I'd like to begin today by reflecting on that history 今天，我想追溯历史， starting back at the time when the Army chose Tuskegee as the site of its airfield and flight school for black pilots. 从军队将塔斯基吉选为黑人
