Mizrob A.

“The medieval European, who shared the fundamental assumptions of his Muslim contemporary, would have agreed with him in ascribing religious movements to religious causes, and would have sought no further for an explanation. But when Europeans ceased to accord first place to religion in their thoughts, sentiments, interests, and loyalties, they also ceased to admit that other men, in other times and places, could have done so. To a rationalistic and materialistic generation, it was inconceivable that such great debates and mighty conflicts could have involved no more than ‘merely’ religious issues. And so historians, once they had passed the stage of amused contempt, devised a series of explanations, setting forth for what they described as the ‘real’ or 'ultimate’ significance 'underlying’ religious movements and differences. The clashes and squabbles of the early churches, the great Schism, the Reformation, all were reinterpreted in terms of motives and interests reasonable by the standards of the day—and for religious movements of Islam too explanations were found that tallied with the outlook and interests of the finders.”
― Bernard Lewis, Islam in History: Ideas, People, and Events in the Middle East

“Religious suffering is, at one and the same time, the expression of real suffering and protest against real suffering. Religion is the sigh of the oppressed creature, the heart of a heartless world, and the soul of soulless conditions. It is the opium of the people. The abolition of religion as the illusory happiness of the people is the demand for their real happiness. To call on them to give up their illusions about their condition is to call on them to give up a condition that requires illusions. The criticism of religion is, therefore, in embryo, the criticism of that vale of tears of which religion is the halo. Criticism has plucked the imaginary flowers on the chain not in order that man shall continue to bear that chain without fantasy or conclusion, but so that he shall throw off the chain and pluck the living flower.”
― Karl Marx

“It has always been asked in the spirit of: ‘What are the best sources of our knowledge – the most reliable ones, those which will not lead us into error, and those to which we can and must turn, in case of doubt, as the last court of appeal?’ I propose to assume, instead, that no such ideal sources exist – no more than ideal rulers – and that all ‘sources’ are liable to lead us into errors at times. And I propose to replace, therefore, the question of the sources of our knowledge by the entirely different question: ‘How can we hope to detect and eliminate error?’ The question of the sources of our knowledge, like so many authoritarian questions, is a genetic one. It asks for the origin of our knowledge, in the belief that knowledge may legitimize itself by its pedigree. The nobility of the racially pure knowledge, the untainted knowledge, the knowledge which derives from the highest authority, if possible from God: these are the (often unconscious) metaphysical ideas behind the question. My modified question, ‘How can we hope to detect error?’ may be said to derive from the view that such pure, untainted and certain sources do not exist, and that questions of origin or of purity should not be confounded with questions of validity, or of truth. …. The proper answer to my question ‘How can we hope to detect and eliminate error?’ is I believe, ‘By criticizing the theories or guesses of others and – if we can train ourselves to do so – by criticizing our own theories or guesses.’ …. So my answer to the questions ‘How do you know? What is the source or the basis of your assertion? What observations have led you to it?’ would be: ‘I do not know: my assertion was merely a guess. Never mind the source, or the sources, from which it may spring – there are many possible sources, and I may not be aware of half of them; and origins or pedigrees have in any case little bearing upon truth. But if you are interested in the problem which I tried to solve by my tentative assertion, you may help me by criticizing it as severely as you can; and if you can design some experimental test which you think might refute my assertion, I shall gladly, and to the best of my powers, help you to refute it.”
― Karl Popper

“Self-taught, are you?" Julian Castle asked Newt.
"Isn't everybody?" Newt inquired.
"Very good answer.”
― Kurt Vonnegut, Cat’s Cradle