“Chiefly responsible for the bad name of anarchism are the supporters of political power, but anarchists too have contributed by being vague and perfunctory concerning the social side of their doctrine and by frequently espousing the cause of rebellion without insisting on its social illumination. Antisocial impulses and practices may only too easily find in anarchism a pseudo-rational justification. For these reasons the adjective "social" is a useful addition to the word "anarchism"—in order to be truly anarchist one has to be social.”

The Book of Ammon
Context: Despite the popular idea of anarchists as violent men, Anarchism is the one non-violent social philosophy.… The function of the Anarchist is two-fold. By daily courage in non-cooperation with the tyrannical forces of the State and the Church, he helps to tear down present society; the Anarchist by daily cooperation with his fellows in overcoming evil with good-will and solidarity builds toward the anarchistic commonwealth which is formed by voluntary action with the right of secession.

Authors Take Sides on the Spanish War (1937) edited by Nancy Cunard and publisehd by the Left Review

Source: Violence and the Labor Movement (1914), p. 92
Context: Unquestionably socialism and anarchism attract distinctly different types, who are in many ways alien to each other. Their mental processes differ.

Spies (1887 cited in: Lucy Eldine Parsons, August Vincent Theodore Spies (1969) Famous Speeches of the Eight Chicago Anarchists. p. 22

In this clip, Murray Bookchin is speaking to a crowd of anarcho-capitalists and other libertarians at a Libertarian Party Conference. Karl Hess is sitting next to Bookchin at the table.
Anarchism in America http://alexpeak.com/art/films/aia/ (15 January 1983)
Context: The basic problem I really have is that whenever I meet leftists in the socialist and Marxist movements, I'm called a petit-bourgeois individualist. [audience laughs] I'm supposed to shrink after this— Usually I'm called petit-bourgeois individualist by students, and by academicians, who’ve never done a days work life [sic] in their entire biography, whereas I have spent years in factories and the trade unions, in foundries and auto plants. So after I have to swallow the word petit-bourgeois, I don't mind the word individualist at all!I believe in individual freedom; that's my primary and complete commitment—individual liberty. That’s what it's all about. And that's what socialism was supposed to be about, or anarchism was supposed to be about, and tragically has been betrayed.And when I normally encounter my so-called colleagues on the left—socialists, Marxists, communists—they tell me that, after the revolution, they're gonna shoot me. [audience laughs, Murray nods] That is said with unusual consistency. They're gonna stand me and Karl up against the wall and get rid of us real fast; I feel much safer in your company. [audience laughs and applauds]

Anarchism and Other Essays (1910), The Psychology of Political Violence

Anarchism And Other Impediments To Anarchy (1985)
Context: The history of anarchism is a history of unparalleled defeat and martyrdom, yet anarchists venerate their victimized forebears with a morbid devotion which occasions suspicion that the anarchists, like everybody else, think that the only good anarchist is a dead one. Revolution — defeated revolution — is glorious, but it belongs in books and pamphlets. In this century — Spain in 1936 and France in 1968 are especially clear cases — the revolutionary upsurge caught the official, organized anarchists flat-footed and initially non-supportive or worse. The reason is not far to seek. It's not that all these ideologues were hypocrites (some were). Rather, they had worked out a daily routine of anarchist militancy, one they unconsciously counted on to endure indefinitely since revolution isn't really imaginable in the here-and-now, and they reacted with fear and defensiveness when events outdistanced their rhetoric.
In other words, given a choice between anarchism and anarchy, most anarchists would go for the anarchism ideology and subculture rather than take a dangerous leap into the unknown, into a world of stateless liberty.

"The Epistemological Status of the Issue,” 1971-72

Source: Against Method (1975), p. 9.