The germs of existence contained in this spot of earth, with ample food, and ample room to expand in, would fill millions of worlds in the course of a few thousand years.

Man cannot live in the midst of plenty.

The immediate cause of the increase of population is the excess of the births above deaths; and the rate of increase, or the period of doubling, depends upon the proportion which the excess of the births above the deaths bears to the population.

A feather will weigh down a scale when there is nothing in the opposite one.

A writer may tell me that he thinks man will ultimately become an ostrich. I cannot properly contradict him.

The redundant population, necessarily occasioned by the prevalence of early marriages, must be repressed by occasional famines, and by the custom of exposing children, which, in times of distress, is probably more frequent than is ever acknowledged to Europeans.

If one fourth of the capital of a country were suddenly destroyed, or entirely transferred to a different part of the world, without any other cause occurring of a diminished demand for commodities, this scantiness of capital would certainly occasion great inconvenience to consumers, and great distress among the working classes; but it would be attended with great advantages to the remaining capitalists.