—— 请按键盘 空白键 开始游戏 ——

The environment shapes behavior through the mechanism of reinforcement.
改变的秘诀在于集中你所有的精力,不是对抗旧的,而是建立新的。
Happiness is as a butterfly which, when pursued, is always beyond our grasp, but which if you will sit down quietly, may alight upon you.
一切都是学习的过程:每次跌倒,你都会站起来并从中学习。