Unto this Last by John Ruskin

In the last paper we saw that just payment of labour consisted in a sum of money which would approximately obtain equivalent labour at a future time: we have now to examine the means of obtaining such equivalence. Which question involves the definition of Value, Wealth, Price, and Produce.

None of these terms are yet defined so as to be understood by the public. But the last, Produce, which one might have thought the clearest of all, is, in use, the most ambiguous; and the examination of the kind of ambiguity attendant on its present employment will best open the way to our work.