The mind is a complex system that can be analyzed at multiple levels.
我需要的是春天的蒲公英。那明亮的黄色意味着重生而不是毁灭。生命可以继续的承诺,无论我们的损失有多糟糕。它可以再次变得美好。
The most exciting moments in mathematics are when you see connections between things that seemed unrelated before.