The only way to change behavior is through manipulation of reinforcement contingencies.
心理生活是一个整体,这一普遍陈述可以毫不犹豫地接受。
The most important questions in life often have no answers, and we must learn to live with them.
追求知识是一段没有终点的旅程,充满了奇迹和发现。
成为一名作家就是成为一名专业的观察者。
The tragedy of great power politics is that it leads to conflict and war.