Philosophers have puzzled themselves how to define man, so as to
distinguish him from other animals. Burke says, "Man is an animal that
cooks its victuals." "Then," says Johnson, "the proverb is just, 'there
is reason in roasting eggs.'" Dr. Adam Smith has hit this case; "Man,"
says he, "is an animal that makes bargains; no other animal does
this--one dog does not change a bone with another."--_London Mag_.
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