variably
confirms its truth.

CHAPTER 2

The different ratio in which population and food increase--The
necessary effects of these different ratios of increase--Oscillation
produced by them in the condition of the lower classes of
society--Reasons why this oscillation has not been so much observed as
might be expected--Three propositions on which the general argument of
the Essay depends--The different states in which mankind have been
known to exist proposed to be examined with reference to these three
propositions.

I said that population, when unchecked, increased in a geometrical
ratio, and subsistence for man in an arithmetical ratio.

Let us examine whether this position be just. I think it will be
allowed, that no state has hitherto existed (at least that we have any
account of) where the manners were so pure and simple, and the means of
subsistence so abundant, that no check whatever has existed to early
marriages, among the lower classes, from a fear of not providing well
for their families, or among the higher classes, from a fear of
lowering their condition in life. Consequently in no state that we have
yet known has the power of population been left to exert itself with
perfect freedom.

Whether the law of marriage be instituted or not, the dictate of nature
and virtue seems to be an early attachment to one woman. Supposing a
liberty of changing in the case of an unfortunate choice, this liberty
would not affect population till it arose to a height greatly vicious;
and we are now supposing the existence of a society where vice is
scarcely known.

In a state therefore of great equality and virtue, where pure and
simple manners prevailed, and where the means of subsistence were so
abundant that no part of the society could have any fears about
providing amply for a family, the power of population being left to
exert itself unchecked, the increase of the human species would
evidently be much greater than any increase that has been hitherto
known.

In the United States of America, where the means of subsistence have
been more ample, the manners of the people more pure, and consequently
the checks to early marriages fewer, than in any of the modern states
of Europe, the population has been found to double itself in
twenty-five years.

This ratio of increase, though short of the utmost power of population,
yet as the result of actual experience, we will take as our rule, and
say, that populati