CHAPTER II.

THE POPULATION QUESTION.


_The Teaching of Aristotle and Plato.--The teaching of Malthus.--His
assailants.--Their illogical position.--Bonar on Malthus and his
work.--The increase of food supplies held by Nitti to refute
Malthus.--The increase of food and the decrease of births.--Mr.
Spencer's biological theory.--Maximum birth-rate determined by female
capacity to bear children.--The pessimism of Spencer's law.--Wider
definition of moral restraint.--Where Malthus failed to anticipate the
future.--Economic law operative only through Biological law._


Births, deaths, and migration are the factors which make up the
population question.

The problem has burned in the minds of all great students of human life
and its conditions.

Aristotle says (Politics ii. 7-5) "The legislator who fixes the amount
of property should also fix the number of children, for if they are too
many for the property, the law must be broken." And he proceeds to
advise (ib. vii. 16-15) "As to the exposure and rearing of children, let
there be a law that no deformed child shall live, but where there are
too many (for in our State population has a limit) when couples have
children in excess and the state of feeling is adverse to the exposure
of offspring, let abortion be procured."