Real Property
Note from Silk and Purple by John Ruskin

Or rather, equivalent to such real property, because everybody has been accustomed to look upon it as valuable: and therefore everybody is willing to give labour or goods for it. But real property does ultimately consist only in things that nourish body or mind; gold would be useless to us if we could not get mutton or books for it. Ultimately all commercial mistakes and embarrassments result from people expecting to get goods without working for them, or wasting them after they have got them. A nation which labours, and takes care of the fruits of labour, would be rich and happy; though there were no gold in the universe. A nation which is idle, and wastes the produce of what work it does, would be poor and miserable, though all its mountains were of gold, and had glens filled with diamonds instead of glacier.

From the essay Distribution part of his Second Lecture on The Political Economy Of Art