After reading some of what Victor Niederhoffer wrote about Murray Rothbard I read a little myself. An interesting economist with provocative ideas. A founding member of the Cato Institute. A member of the extreme right.
A member of the Austrian School of economic thought--Adam Smith had said that the value of a commodity is related to the labor needed to produce it. Even Smith saw a problem with this--after grapes are crushed you have grape juice, low value; after letting it sit in barrels for a few years you have wine, higher value. The value increased without additional labor, and Smith knew this. The Austrian School was part of an economic florescence that produced the marginal theory of utility, and this is where capitalist thought headed; Marxism stuck with the labor theory. After participating in this fundamental change in economic theory, the Austrian School ran out of ideas. When Keynes came along they could only reject him, which pushed them further from the mainstream. And so on.
But Rothbard still had many ideas that should be considered.