Anarchist schools of thought can differ fundamentally, supporting anything from extreme individualism to complete collectivism. Strains of anarchism have often been divided into the categories of social and individualist anarchism or similar dual classifications. Anarchism is often considered a radical left-wing ideology, and much of anarchist economics and anarchist legal philosophy reflect anti-authoritarian interpretations of communism, collectivism, syndicalism, mutualism, or participatory economics. At some point "the collectivist, communist, and liberal and individualist strands of thought from which anarchists drew their inspiration began to assume an increasingly distinctive quality, supporting the rise of a number of anarchist schools."