行为主义者放在自己面前的规则或衡量标准总是:我能否用"刺激和反应"来描述我所看到的这一行为?
Anyone who isn't embarrassed of who they were last year probably isn't learning enough.
Believe you can and you're halfway there.
土地给予我们一切;我们必须回馈一些东西。