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All complex behavior can be reduced to simpler stimulus-response units.
Innovation comes not from more resources, but from better use of resources.
If you are born poor it's not your mistake, but if you die poor it's your mistake.
The only valid data for psychology are observable behaviors.
我们会死。那可能是生命的意义。但我们创造语言。那可能是衡量我们生命的标准。