—— 请按键盘 空白键 开始游戏 ——

自然的法则是无情的。
Sustainability isn't an option; it's a necessity for the future of energy.
The Langlands correspondence is not just a theorem but a guiding principle for future discoveries.
一本好书是一位伟大的老师。
数学的美在于它如此简单却又如此强大。
Innovation is not about saying yes to everything. It's about saying no to all but the most crucial features.