Primarily [anarchism] is a tendency that is suspicious and skeptical of domination, authority, and hierarchy.
It seeks structures of hierarchy and domination in human life over the whole range, extending from, say, patriarchal families to, say, imperial systems, and it asks whether those systems are justified. (…)
And if they can’t justify that authority and power and control, which is the usual case, then the authority ought to be dismantled and replaced by something more free and just. — Noam Chomsky interview @ alternet