It has been said, and perhaps with truth, that the conclusions of Political Economy partake more of the certainty of the stricter sciences than those… - Thomas Robert Malthus

It cannot be true, therefore, that among animals some of the offspring will possess the desirable qualities of the parents in greater degree, or that animals are indefinitely perfectible.

I feel no doubt whatever that the parish laws of England have contributed to raise the price of provisions and to lower the real price of labour.

The proposition of Mr. Ricardo, which states that a rise in the price of labour lowers the price of a large class of commodities, has undoubtedly a very paradoxical air; but it is, nevertheless, true, and the appearance of paradox would vanish, if it were stated more naturally and correctly.