do, a large proportion of those who are born, die. The retardation of increase results either from mortality or prudence; from Mr. Malthus's positive, or from his preventive check: and one or the other of these must and does exist, and very powerfully too, in all old societies. Wherever population is not kept down by the prudence either of individuals or of the state, it is kept down by starvation or disease.
§ 5. Due Restriction of Population the only Safeguard of a Laboring-Class.
Where a laboring-class who have no property but their daily wages, and no hope of acquiring it, refrain from over-rapid multiplication, the cause, I believe, has always hitherto been, either actual legal restraint, or a custom of some sort which, without intention on their part, insensibly molds their conduct, or affords immediate inducements not to marry. It is not generally known in how many countries of Europe direct legal obstacles are opposed to improvident marriages.
Where there is no general law restrictive of marriage, there are often customs equivalent to it.