—— 请按键盘 空白键 开始游戏 ——

The key to solving complex problems is often to find the right abstraction that simplifies the problem without losing its essential features.
我们可以用言辞说出事情,也可以用言辞来实现事情。
【译文】圣人的道理,平坦得就像大路一样,学者苦于不能得其人门的要领。
In dreams, you don't need to make any distinctions between things. Not at all. Boundaries don't exist. So in dreams there are hardly ever collisions.