来自《耶鲁大学开放课程：心理学导论 第4集 第4集》

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  So one of the things you want to do is—
  所以 你需要做的事情就是
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  The pig is going to do some things you like
  这头猪会做些令你喜欢的事情
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  and some things you don't like.
  也会做些让你不满的事情
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  And so what you want to do,
  你所要做的就是
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  basically drawing upon the law of effect,
  应用效果律
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  is reinforce the pig for doing good things.
  强化这头猪做出的令你满意的行为
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  Suppose you want the pig to walk forward.
  假设你想让这头猪向前走
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  So, you reinforce the pig for walking forward
  那你就对这头猪向前走的行为给予强化
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  and you punish the pig for walking backward.
  如果它向后退 你就惩罚它
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  And if you do that over the fullness of time,
  如果你长时间的这么做
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  your reinforcement and punishment
  你的强化和惩罚
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  will give rise to a pig who walks forward.
  就会使这头猪形成向前走的行为