If you are looking for something in your house， and you finally find it， when you’re done with it， don’t put it back where you found it. Put it back where you first looked for it.

All complex behavior can be reduced to simpler stimulus-response units.

游戏可以像电影、音乐和文学一样，传递深刻的情感和体验。

不刚劲正直，就不能纠正奸邪。