The prodigious waste of human life occasioned by this perpetual struggle for room and food, was more than supplied by the mighty power of population, acting, in some degree, unshackled, from the constant habit of emigration.
Thomas MalthusA great emigration necessarily implies unhappiness of some kind or other in the country that is deserted.
Thomas MalthusThe 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.
Thomas MalthusNo limits whatever are placed to the productions of the earth; they may increase forever.
Thomas Malthus