Thomas Malthus

Population, when unchecked, increases in a geometrical ratio.

The prodigious waste of human life occasioned by this perpetual struggle for room and food, was more than supplied by the mighty power of population, acting, in some degree, unshackled, from the constant habit of emigration.

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

The rich, by unfair combinations, contribute frequently to prolong a season of distress among the poor.

In a state therefore of great equality and virtue, where pure and simple manners prevailed, the increase of the human species would evidently be much greater than any increase that has been hitherto known.

I think it will be found that experience, _x000D_ the true source and foundation of all knowledge, _x000D_ invariably confirms its truth.

Population, when unchecked, increases in a geometrical ratio. Subsistence increases only in an arithmetical ratio. A slight acquaintance with numbers will shew the immensity of the first power in comparison of the second.

The most baleful mischiefs may be expected from the unmanly conduct of not daring to face truth because it is unpleasing.

The great and unlooked for discoveries that have taken place of late years have all concurred to lead many men into the opinion that we were touching on a period big with the most important changes.

It has appeared that from the inevitable laws of our nature, some human beings must suffer from want. These are the unhappy persons who, in the great lottery of life, have drawn a blank.