Jealousy is not a pathology; it's an evolved defense mechanism against threats to reproductive success.
"世界是一面镜子,而镜子是一场游戏。"
最深刻的定理往往有最简单的证明 - 如果你从正确的角度看它们的话。
当你认为你理解了一个问题时,你就停止思考它了。