The Wealth of Nations by Part 2 Chapter 3 Page 33

every prodigal appears to be a public enemy, and every frugal man a public benefactor.

The effects of misconduct are often the same as those of prodigality. Every injudicious and unsuccessful project in agriculture, mines, fisheries, trade, or manufactures, tends in the same manner to diminish the funds destined for the maintenance of productive labour. In every such project, though the capital is consumed by productive hands only, yet, as by the injudicious manner in which they are employed they do not reproduce the full value of their consumption, there must always be some diminution in what would otherwise have been the productive funds of the society.

It can seldom happen, indeed, that the circumstances of a great nation can be much affected either by the prodigality or misconduct of