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

No move towards the extinction of the passion between the sexes has taken place in the five or six thousand years that the world has existed.

Subsistence increases only in an arithmetical ratio.

Population, when unchecked, goes on doubling itself every 25 years or increases in a geometrical ratio.

The greatest talents have been frequently misapplied and have produced evil proportionate to the extent of their powers. Both reason and revelation seem to assure us that such minds will be condemned to eternal death, but while on earth, these vicious instruments performed their part in the great mass of impressions, by the disgust and abhorrence which they excited.

It may at first appear strange, but I believe it is true, that I cannot by means of money raise a poor man and enable him to live much better than he did before, without proportionably depressing others in the same class.

Population regulates itself by the funds which are to employ it, and therefore always increases or diminishes with the increase or the diminution of capital. Every reduction of capital is therefore necessarily followed by a less effective demand for corn, by a fall in price, and by a diminished cultivation.