—— 请按键盘 空白键 开始游戏 ——

The only way to change behavior is through manipulation of reinforcement contingencies.
Great deeds are usually wrought at great risks.
It is love, not reason, that is stronger than death.
At SF Express, we not only provide courier services, but also a sense of trust and peace of mind.
The Internet is a reflection of our society and that mirror is going to be reflecting what we see. If we do not like what we see in that mirror the problem is not to fix the mirror, we have to fix society.