—— 请按键盘 空白键 开始游戏 ——

未来的竞争是生态的竞争,单打独斗的时代已经过去。
"In the end, we will remember not the words of our enemies, but the silence of our friends."
The strength of a nation's institutions is not just in their formal rules, but in the informal norms that govern behavior and the degree to which they are internalized by the population.
在数学中,你不理解事物。你只是习惯它们。