Reactionary or Progressive?

Said Ludwig von Mises:

The usual terminology of political language is stupid. What is “left” and what is “right”? Why should Hitler be “right” and Stalin, his temporary friend, be “left”? Who is “reactionary” and who is “progressive”? Reaction against an unwise policy is not to be condemned. And progress towards chaos is not to be commended. Nothing should find acceptance just because it is new, radical, and fashionable. “Orthodoxy” is not an evil if the doctrine on which the “orthodox” stand is sound.

Further:

What would have happened to Western civilization if its peoples had always shown such liking for the “new”? Suppose they had welcomed as “the wave of the future” Attila and his Huns, the creed of Mohammed, or the Tartars? They, too, were totalitarian and had military successes to their credit which made the weak hesitate and ready to capitulate. What mankind needs today is liberation from the rule of nonsensical slogans and a return to sound reasoning.

H/T: J.R. Sjöberg