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The aim of every artist is to arrest motion, which is life, by artificial means and hold it fixed so that a hundred years later, when a stranger looks at it, it moves again since it is life.

微生物什么都不是；環(huán)境才是一切。

The strength of a response tendency depends on the amount of reinforcement received.

當(dāng)你渴望成功像渴望呼吸一樣時(shí)，你就會(huì)成功。