The end of history will be a very sad time. The struggle for recognition, the willingness to risk one's life for a purely abstract goal, the worldwide ideological struggle that called forth daring, courage, imagination, and idealism, will be replaced by economic calculation, the endless solving of technical problems, environmental concerns, and the satisfaction of sophisticated consumer demands.
AdS/CFT对应是一个强大的工具,它弥合了量子场论和引力之间的差距,为我们提供了对时空本质的深刻见解。
不要让别人意见的噪音淹没了你内心的声音。
安全生产是煤炭行业的生命线,任何时候都不能放松。