Quotes by Demographers

Population when unchecked increases in a geometrical ratio. Subsistence only increases in an arithmetical ratio.
Thomas Robert Malthus
The lower classes of people in Europe may at some future periodbe much better instructed than they are at present; they may be taughtto employ the little spare time they have in many better ways than atthe ale-house; they may live under better and more equal laws than theyhave ever hitherto done, perhaps, in any country; and I even conceive itpossible, though not probable that they may have more leisure; but it isnot in the nature of things that they can be awarded such a quantity ofmoney or subsistence as will allow them all to marry early, in the fullconfidence that they shall be able to provide with ease for a numerousfamily.
Thomas Robert Malthus
I should be inclined, therefore, as I have hinted before, to consider the world and this life as the mighty process of God, not for the trial, but for the creation and formation of mind, a process necessary to awaken inert, chaotic matter into spirit, to sublimate the dust of the earth into soul, to elicit an ethereal spark from the clod of clay. And in this view of the subject, the various impressions and excitements which man receives through life may be considered as the forming hand of his Creator, acting by general laws, and awakening his sluggish existence, by the animating touches of the Divinity, into a capacity of superior enjoyment. The original sin of man is the torpor and corruption of the chaotic matter in which he may be said to be born.
Thomas Robert Malthus
as long as agreat number of those impressions which form character, like the nicemotions of the arm, remain absolutely independent of the will of man,though it would be the height of folly and presumption to attempt tocalculate the relative proportions of virtue and vice at the future periodsof the world, it may be safely asserted that the vices and moralweakness of mankind, taken in the mass, are invincible.
Thomas Robert Malthus
It may be said with truth that man is always susceptible ofimprovement
Thomas Robert Malthus
The vices and moral weakness of man are not invincible: Man is perfectible, or in other words, susceptible of perpetual improvement.
Thomas Robert Malthus
The real perfectibility of man may be illustrated, as I havementioned before, by the perfectibility of a plant. The object of theenterprising florist is, as I conceive, to unite size, symmetry, and beautyof colour. It would surely be presumptuous in the most successfulimprover to affirm, that he possessed a carnation in which thesequalities existed in the greatest possible state of perfection. Howeverbeautiful his flower may be, other care, other soil, or other suns, mightproduce one still more beautiful.
Thomas Robert Malthus