孔子说:“遇到可以说的人却不说,就会失去可与说话的人;遇到不可说的人却说了,就是说话冒失。聪明的人既不去可交谈的人,也不言谈冒失。”
The international system is inherently competitive, and states are constantly trying to outmaneuver each other.
The power of mathematics is in its universality and its ability to transcend cultural boundaries.