The most successful supporters of tyranny are without doubt those general declaimers who attribute the distresses of the poor, and almost all evils to which society is subject, to human institutions and the iniquity of governments.

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.

Subsistence increases only in an arithmetical ratio.

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.

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.

In 1860, sixty-three per cent of the couples married in Great Britain had families of four or more children; in 1925 only twenty per cent had more than four.

The world's population will multiply more rapidly than the available food supply.