只有死者才能看到战争终结。
Only the dead have seen the end of war
Development economics is ultimately about improving people's lives.
冬天已经到来，春天还会远吗？
Understanding the limits of computation is as important as expanding its capabilities.
灵魂被放置在身体里，就像一颗粗糙的钻石，必须经过打磨，否则它的光泽永远不会显现。