"The power of population is indefinitely greater than the power in the earth to produce subsistence for man."

Nature produces existence aka each ones expressed growth outwards...few within tempt many into subsistence aka many (population) standing under each chosen one.

Nature sets apart; few within tempt many together. Democracy aka demos (people) + kratos (strength) implies the power of population wielded by few, who are selected as the producers by the willing subsistence of man(y).