Murray Rothbard

The fact that natural-law theorists derive from the very nature of man a fixed structure of law independent of time and place, or of habit or authority or group norms, makes that law a mighty force for radical change.

It is understandable that the Fed injects cash to avoid the collapse of the stock market, but basically it is bad policy for monetary authorities to intervene to save speculators from bankruptcy. This is not their role.