What makes economics different from and inferior to other sciences is the tenacity with which it holds to its core beliefs in the face of either cont… - Steve Keen

If there was never any difference between the value of commodities someone desired to sell and buy on the market, then no-one would ever desire to accumulate wealth. But an essential feature of capitalism is the existence of a group of agents with precisely that intention.

If a 19th century capitalist Machiavelli had wished to cripple the socialist intelligentsia of the 20th century, he could have invented no more cogent weapon than the labour theory of value. Yet this theory was the invention, not of a defender of capitalism, but of its greatest critic: Karl Marx.

Not even an economist can make time stand still (though some victims of economics lectures might dispute that!).