The pursuit of power is the primary goal of states in the international system.
In computational complexity, we are not just dealing with the limits of what we can compute, but also with the limits of what we can prove.
艺术中没有必须,因为艺术是自由的。
我们从这样的假设开始:任何学科都可以以某种智力上诚实的形式有效地教给处于任何发展阶段的任何孩子。
"Libraries are the treasure chests of the world."
银行要注重长期价值,而非短期利益。