The first business of philosophy is to account for things as they are; and till our theories will do this, they ought not to be the ground of any practical conclusion.
Thomas MalthusThe moon is not kept in her orbit round the earth, nor the earth in her orbit round the sun, by a force that varies merely in the inverse ratio of the squares of the distances.
Thomas MalthusIn general it may be said that demand is quite as necessary to the increase of capital as the increase of capital is to demand.
Thomas MalthusOn the whole it may be observed, that the specific use of a body of unproductive consumers, is to give encouragement to wealth by maintaining such a balance between produce and consumption as will give the greatest exchangeable value to the results of the national industry.
Thomas Malthus