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我们今天种植的每一棵树都是留给后代的遗产。
"The immune system is like a double-edged sword; it can fight cancer but also needs to be controlled."
The rule, or measuring rod, which the behaviorist puts in front of him always is: Can I describe this bit of behavior I see in terms of "stimulus and response"?
The only way to escape the system is to play with it, to turn its own logic against itself.