The only way to change behavior is through manipulation of reinforcement contingencies.
The rule of law is a political ideal, not a legal one.
最大的智慧是认识到自己的无知。
Leadership means making tough decisions today that will benefit generations tomorrow.
Music has the power to heal and bring people together.
你能给别人的最伟大的礼物就是你的时间和关注。
I'm not here to be liked. I'm here to do my job.