Many writers claim that nearly all crime is caused by economic conditions, or in other words that poverty is practically the whole cause of crime. Endless statistics have been gathered on this subject which seem to show conclusively that property crimes are largely the result of the unequal distribution of wealth. But crime of any class cannot be safely ascribed to a single cause. Life is too complex, heredity is too variant and imperfect, too many separate things contribute to human behavior, to make it possible to trace all actions to a single cause.