The exertions that men find it necessary to make, in order to support themselves or families, frequently awaken faculties that might otherwise have lain for ever dormant, and it has been commonly remarked that new and extraordinary situations generally create minds adequate to grapple with the difficulties in which they are involved.

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.

In prosperous times the mercantile classes often realize fortunes, which go far towards securing them against the future; but unfortunately the working classes, though they share in the general prosperity, do not share in it so largely as in the general adversity.

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.

Malthus married in 1804 and beat three children with his wife

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

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.