—— 请按键盘 空白键 开始游戏 ——

Mathematics is not just about numbers, equations, computations, or algorithms: it is about understanding.
The universe we observe has precisely the properties we should expect if there is, at bottom, no design, no purpose, no evil and no good, nothing but blind, pitiless indifference.
无论多么复杂或精细,所有行为都可以用刺激和反应来解释。
Sustainability is the cornerstone of modern business—without it, we build on sand.