—— 请按键盘 空白键 开始游戏 ——

飞蓬生长在麻地里,不用扶持也能挺立;白沙混进黑色泥土,也会跟着一起变黑。
科学研究要解决实际问题,不能只停留在论文上。
Productive thinking is characterized by the sudden appearance of the solution as an insight.
学习数学的唯一方法就是做数学。
Authenticity in design comes from honesty in materials and process.