“It appears to me that one defeats the fanatic precisely by not being a fanatic oneself, but on the contrary by using one's intelligence.”

Jonas Sima interview <!-- p. 117 -->
Bergman on Bergman (1970)
Context: To the fanatical believer physical and spiritual suffering is beside the point, compared with salvation. That is why, to him, everything happening around him is irrelevant, a mirror-image, a mere will-o'-the-wisp. … I can really never get shot of them, the fanatics. Whether they appear as religious fanatics or vegetarian fanatics makes no odds. They're catastrophic people. These types whose whole cast of mind as it were looks beyond mere human beings toward some unknown goal. The terrible thing is the great power they often wield over their fellow human beings. Apart from the fact that I believe they suffer like the very devil, I've no sympathy for them.

"Quotes", The Educated Imagination (1963), Talk 3: Giants in Time
Context: One of the most obvious uses [of literature], I think, is its encouragement of tolerance. In the imagination our own beliefs are also only possibilities, but we can also see the possibilities in the beliefs of others. Bigots and fanatics seldom have any use for the arts, because they're so preoccupied with their beliefs and actions that they can't see them as also possibilities.

"La Commune de Paris et la notion de l'état" (The Commune of Paris and the notion of the state) http://libcom.org/library/paris-commune-mikhail-bakunin as quoted in Noam Chomsky: Notes on Anarchism (1970) http://pbahq.smartcampaigns.com/node/222
Context: I am a fanatic lover of liberty, considering it as the unique condition under which intelligence, dignity and human happiness can develop and grow; not the purely formal liberty conceded, measured out and regulated by the State, an eternal lie which in reality represents nothing more than the privilege of some founded on the slavery of the rest; not the individualistic, egoistic, shabby, and fictitious liberty extolled by the School of J.-J. Rousseau and other schools of bourgeois liberalism, which considers the would-be rights of all men, represented by the State which limits the rights of each — an idea that leads inevitably to the reduction of the rights of each to zero. No, I mean the only kind of liberty that is worthy of the name, liberty that consists in the full development of all the material, intellectual and moral powers that are latent in each person; liberty that recognizes no restrictions other than those determined by the laws of our own individual nature, which cannot properly be regarded as restrictions since these laws are not imposed by any outside legislator beside or above us, but are immanent and inherent, forming the very basis of our material, intellectual and moral being — they do not limit us but are the real and immediate conditions of our freedom.

Source: The Rise of Endymion (1997), Chapter 21 (p. 454)

Letter to James Smith (1822)
1820s
Context: No historical fact is better established, than that the doctrine of one God, pure and uncompounded, was that of the early ages of Christianity … Nor was the unity of the Supreme Being ousted from the Christian creed by the force of reason, but by the sword of civil government, wielded at the will of the fanatic Athanasius. The hocus-pocus phantasm of a God like another Cerberus, with one body and three heads, had its birth and growth in the blood of thousands of martyrs … The Athanasian paradox that one is three, and three but one, is so incomprehensible to the human mind, that no candid man can say he has any idea of it, and how can he believe what presents no idea? He who thinks he does, only deceives himself. He proves, also, that man, once surrendering his reason, has no remaining guard against absurdities the most monstrous, and like a ship without rudder, is the sport of every wind. With such person, gullibility which they call faith, takes the helm from the hand of reason, and the mind becomes a wreck.

Source: A History of National Socialism (1934), p. 100

Source: Academic Hinduphobia (2016), p.215