It is the fashionable belief that an idea is wrong in proportion to its "extremism" and right in proportion as it is a chaotic muddle of contradictory doctrines. To the professional middle-of-the-roader, a species that is always found in abundance, the demagogue invariably comes as a nasty shock. For it is one of the most admirable qualities of the demagogue that he forces men to think, some for the first time in their lives. Out of the muddle of current ideas, both fashionable and unfashionable, he extracts some and pushes them to their logical conclusions, i.e. "to extremes." He thereby forces people either to reject their loosely held views as unsound, or to find them sound and to pursue them to their logical consequences. Far from being an irrational force, then, the silliest of demagogues is a great servant of Reason, even when he is mostly in the wrong.
- Murray Rothbard (1954)