after year, paying you wages, unless he receives more for the product of your labor than he pays you in wages. Now, this difference between what you get and what he gets is what we call surplus-value.
This surplus-value is the key to the whole present economic organization of society. The end and object of bourgeois society is the formation and accumulation of surplus-value, or in other words, the systematic robbery of the producing class. Now when we say robbery, we do not mean to accuse employers of conscious dishonesty. They are the creatures of a system just as the workers are, but it is a system which makes their interests diametrically opposed to the interests of their employees. The only way the capitalists can increase their relative share of the product of their employees' labor is by decreasing the relative share of the latter.
Now, if out of the total product of his labor the workingman only receives a part, then it is true to say that he works part of the day for himself and part of the day gratuitously for the capitalist. Let us say, for purposes of illustration, that he works three hours for himself and seven hours for his employer for nothing. This three hours we call his necessary labor time, or
