It is an acknowledged truth in philosophy that a just theory will always be confirmed by experiment.
Thomas Malthus

The histories of mankind are histories only of the higher classes.
Thomas Malthus

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.
Thomas Malthus

The constant effort towards population, which is found even in the most vicious societies, increases the number of people before the means of subsistence are increased.
Thomas Malthus

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.
Thomas Malthus

The main peculiarity which distinguishes man from other animals is the means of his support-the power which he possesses of very greatly increasing these means.
Thomas Malthus

A great emigration necessarily implies unhappiness of some kind or other in the country that is deserted.
Thomas Malthus

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