Animals can be driven crazy by placing too many in too small a pen. Homo sapiens is the only animal ...

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Animals can be driven crazy by placing too many in too small a pen. Homo sapiens is the only animal that voluntarily does this to himself.

Robert A. Heinlein

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Robert A. Heinlein

American science fiction author

July 7th, 1907 - May 8th, 1988

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