The moon is not kept in her orbit round the earth, nor the earth in her orbit round the sun, by a force that varies merely in the inverse ratio of the squares of the distances.

Whether the law of marriage be instituted or not, the dictate of nature and virtue seems to be an early attachment to one woman.

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.

The power of population is so superior to the power of the earth to produce subsistence for man, that premature death must in some shape or other visit the human race.

The moon is not kept in her orbit round the earth, nor the earth in her orbit round the sun, by a force that varies merely in the inverse ratio of the squares of the distances.

The superior power of population cannot be checked without producing misery or vice.

Instead of recommending cleanliness to the poor, we should encourage contrary habits. In our towns we should make the streets narrower, crowd more people into the houses, and court the return of the plague.