"A system of capitalism presumes sound money, not fiat money manipulated by a central bank. Capitalism cherishes voluntary contracts and interest rates that are determined by savings, not credit creation by a central bank"

In the quote, Ron Paul critiques the modern capitalist system, highlighting the discrepancies between its theoretical concepts and practice. He underscores the significance of "sound money"-- a currency that is steady, inherently valuable, and not subject to adjustment by central institutions. Sound money, in Paul's view, should hold its value gradually and not be quickly affected by governmental or central bank policies. This contrasts with "fiat cash", which is government-issued currency that holds worth largely because a federal government keeps it does rather than being backed by a physical product like silver or gold.

Paul is suggesting that the current system of commercialism has actually differed its foundational principles due to dependence on fiat money and reserve bank policies. Reserve banks, such as the Federal Reserve in the United States, have the authority to produce money, set rates of interest, and control financial policy, which can cause economic distortions. According to Paul's viewpoint, this manipulation disrupts the natural market systems of industrialism, like the decision of rate of interest by the real supply and need for savings.

By stressing voluntary agreements, Paul is advocating for a system where people and companies engage easily in arrangements without unnecessary disturbance. In real commercialism, market forces need to determine rates of interest, showing authentic savings and investment what he calls "savings", as opposed to "credit development", which implies that cash is arbitrarily created and designated by a reserve bank. This can lead to misallocations of resources, possession bubbles, and cycles of booms and busts.

In summary, Ron Paul argues for a purer kind of industrialism where money and rate of interest are figured out by the natural interactions of independent agents in a free market, without the distortions presented by central bank interventions and fiat currencies. This, he thinks, would result in a more steady and reasonable economic system.