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April 10, 2026
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"In science, as in the playing card experiment, novelty emerges only with difficulty, manifested by resistance, against a background provided by expectation."
"In the development of any science, the first received paradigm is usually felt to account quite successfully for most of the observations and experiments easily accessible to that scienceās practitioners. Further development, therefore, ordinarily calls for the construction of elaborate equipment, the development of an esoteric vocabulary and skills, and a refinement of concepts that increasingly lessens their resemblance to their usual common-sense prototypes. That professionalization leads, on the one hand, to an immense restriction of the scientistās vision and to a considerable resistance to paradigm change. The science has become increasingly rigid. On the other hand, within those areas to which the paradigm directs the attention of the group, normal science leads to a detail of information and to a precision of the observation-theory match that could be achieved in no other way."
"Normal science, the puzzle-solving activity we have just examined, is a highly cumulative enterprise, eminently successful in its aim, the steady extension of the scope and precision of scientific knowledge. In all these respects it fits with great precision the most usual image of scientific work. Yet one standard product of the scientific enterprise is missing. Normal science does not aim at novelties of fact or theory and, when successful, finds none."
"Kuhn's recognition that science might ceaseāleaving us with what Charles Sanders Peirce had defined as the "truth" about natureāmade it even more imperative for Kuhn than for Popper to challenge science's authority, to deny that science can ever arrive at absolute truth. "The one thing I think you shouldn't say is that now we've found out what the world is really like," Kuhn said. "Because that's not what I think the game is about.""
"Philosophers of science have repeatedly demonstrated that more than one theoretical construction can always be placed upon a given collection of data. History of science indicates that, particularly in the early developmental stages of a new paradigm, it is not even very difficult to invent such alternates. But that invention of alternates is just what scientists seldom undertake except during the pre-paradigm stage of their scienceās development and at very special occasions during its subsequent evolution. So long as the tools a paradigm supplies continue to prove capable of solving the problems it defines, science moves fastest and penetrates most deeply through confident employment of those tools. The reason is clear. As in manufacture so in scienceāretooling is an extravagance to be reserved for the occasion that demands it. The significance of crises is the indication they provide that an occasion for retooling has arrived."
"Thomas Kuhn was undoubtedly the strongest influence on the philosophy of science in the last third of the twentieth century. Yet today, at the beginning of the twenty-first century it is unclear what his legacy really is. In the philosophy of science there is no characteristically Kuhnian school. This could be because we are all Kuhnians now. But it might also be because Kuhn's thought, although revolutionary in its time, has since been superseded. In a sense both may be true."
""Normal science" means research firmly based upon one or more past scientific achievements, achievements that some particular scientific community acknowledges for a time as supplying the foundation for its further practice."
"Men whose research is based on shared paradigms are committed to the same rules and standards for scientific practice. That commitment and the apparent consensus it produces are prerequisites for normal science, i.e., for the genesis and continuation of a particular research tradition."
"Ever since prehistoric antiquity one field of study after another has crossed the divide between what the historian might call its prehistory as a science and its history proper. These transitions to maturity have seldom been so sudden or so unequivocal as my necessarily schematic discussion may have implied. But neither have they been historically gradual, coextensive, that is to say, with the entire development of the fields within which they occurred."
"Normal science, the activity in which most scientists inevitably spend almost all their time, is predicated on the assumption that the scientific community knows what the world is like. Normal science often suppresses fundamental novelties because they are necessarily subversive of its basic commitments."
"Somehow, the practice of astronomy, physics, chemistry or biology normally fails to evoke the controversies over fundamentals that today seem endemic among, say, psychologists or sociologists. Attempting to discover the source of that difference led me to recognize the role in scientific research of what I have since called āparadigms.ā These I take to be universally recognized scientific achievements that for a time provide model problems and solutions for a community of practitioners."
"History, if viewed as a repository for more than anecdote or chronology, could produce a decisive transformation in the image of science by which we are now possessed."
"Few people who are not actually practitioners of a mature science realize how much mop-up work of this sort a paradigm leaves to be done or quite how fascinating such work can prove in the execution."
"Out-of-date theories are not in principle unscientific because they have been discarded. That choice, however, makes it difficult to see scientific development as a process of accretion."
"If a demarcation criterion exists (we must not, I think, seek a sharp or decisive one), it may lie just in that part of science which Sir Karl ignores."
"Only when they must choose between competing theories do scientists behave like philosophers."
"I suggest that scientific knowledge, though logically more articulate and far more complex, is of this sort. The books and teachers from whom it is acquired present concrete examples together with a multitude of theoretical generalizations. Both are essential carriers of knowledge, and it is therefore Pickwickian to seek a methodological criterion that supposes the scientist can specify in advance whether each imaginable instance fits or would falsify his theory."
"These three classes of problemsādetermination of significant fact, matching of facts with theory, and articulation of theoryāexhaust, I think, the literature of normal science, both empirical and theoretical. They do not, of course, quite exhaust the entire literature of science. There are also extraordinary problems, and it may well be their resolution that makes the scientific enterprise as a whole so particularly worthwhile. But extraordinary problems are not to be had for the asking. They emerge only on special occasions prepared by the advance of normal research."
"To my complete surprise, that exposure to out-of-date scientific theory and practice radically undermined some of my basic conceptions about the nature of science and the reasons for its special success. Those conceptions were ones I had previously drawn partly from scientific training itself and partly from a long-standing avocational interest in the philosophy of science. Somehow, whatever their pedagogic utility and their abstract plausibility, those notions did not at all fit the enterprise that historical study displayed. Yet they were and are fundamental to many discussions of science, and their failures of verisimilitude therefore seemed thoroughly worth pursuing. The result was a drastic shift in my career plans, a shift from physics to history of science and then, gradually, from relatively straightforward historical problems back to the more philosophical concerns that had initially led me to history."
"The scientific enterprise as a whole does from time to time prove useful, open up new territory, display order, and test long-accepted belief. Nevertheless, the individual engaged on a normal research problem is almost never doing any one of these things. Once engaged, his motivation is of a rather different sort. What then challenges him is the conviction that, if only he is skillful enough, he will succeed in solving a puzzle that no one before has solved or solved so well."
"Scientists work from models acquired through education and through subsequent exposure to the literature often without quite knowing or needing to know what characteristics have given these models the status of community paradigms"
"Remember, Aristotle's De Anima is a seamless mixture of the science and philosophy of his time. We can aim at something similar, i.e. we should feel very comfortable using scientific results in philosophy. It does not mean philosophers must become scientists."
"Modern experimentation is often like driving an automobile. The details and theory of the instruments being used in the experiment are not known to the experimenter except in a very general way. (...) Experimenters are taught in an explicit way, often, how to write up reports of their experiments. But the tradition here is like sports reporting. Only the results of the experiment are reported in any serious detail. The procedures are not."
"I have been hearing for years and years about how the financial services sector pays such exorbitant wages because the people who work there are so immensely talented that they are cheap at $50 million a year. I never particularly bought that line before. But I never imagined that all those Masters of the Universe would do quite this badly. If we had paid them $50 million a year to go far, far away and leave our financial system alone, it would have been a bargain."
"Blasphemy has always seemed to require taking things very seriously."
"Technology is not neutral. We're inside of what we make, and it's inside of us. We're living in a world of connections ā and it matters which ones get made and unmade."
"Though both are bound in the spiral dance, I would rather be a cyborg than a goddess."
"All of reality in late capitalist culture lusts to become an image for its own security."
"In January 1968, after an attack on seven hundred antiwar activists picketing Secretary of State Dean Ruskās speech in San Francisco, one of the jailed victims, a Berkeley student, said of the attacking police, āThey wanted to kill and would have if they could have gotten away with it. I know now that they were out to put Huey away, except Huey had the good sense to defend himself.ā The reference was to Huey Newton, who founded the Black Panthers in California in 1966 and became the Peace and Freedom Party candidate for the U.S. House of Representatives from the Berkeley-Oakland district in 1968 while in prison awaiting trial in connection with the death of one and wounding of another Oakland policeman in a 1966 shoot-out. The first trial, in the summer of 1968, ended in a mistrial, as did two subsequent ones. Almost all of the major trials of Black Panthers ended in mistrials, acquittals, or convictions overturned on appeal, further fueling the suspicion that they were being persecuted by the police. In the course of the trials, plausible evidence of police brutality turned up, including in one case, allegedly murdering two suspects in their beds. The Black Panthers were increasingly being seen as victims of violence, martyrs who courageously stood up to the police."
"To say that I loved Huey, however, even at that moment would be to say too little I loved being loved by him. I loved the protection he offereed with his powerful arms and fearless dreams. I loved how beautiful he was, sinewy, and sultry at once. I loved his genius and his bold uses of it. I loved that he was the vicarious dream of a man that white men hid from themselves, except when he confronted them, their rules, their world. I loved his narrow buttocks and his broad shoulders and his clean skin. I loved being the queen of his world, for he had fashioned a new world for those who dared. Yet I had come to hate life with him. His madness had become as full-blown as his genius. The numerous swaggering "dicks" who had challenged the hero to prove his manhood had finally taken their toll. Now had had outdone them all, including himself."
"Huey P. Newton is the baddest motherfucker ever to set foot inside of history. Huey has a very special meaning to black people, because for four hundred years black people have been wanting to do exactly what Huey Newton did, that is, to stand up in front of the most deadly tentacle of the white racist power structure, and to defy that deadly tentacle, and to tell that tentacle that he will not accept the aggression and the brutality, and that if he is moved against, he will retaliate in kind."
"I doubt he knew my name, but I loved him. Huey - self-taught, brilliant, taciturn, strong-willed - molded in righteous indignation and rage of an oppressed people into a national, militant, revolutionary nationalist organization."
"He admitted killing Officer John Frey. He said that before he killed Frey, the police and the power structure could just come down to the black community and do anything they wanted. But after he shot Frey, much of that changed."
"Always, the rulers of an order, consistent with their own interests and solely of their own design, have employed what to them seemed to be the most optimal and efficient means of maintaining unquestioned social and economic advantage. Clear-cut superiority in things social and economicāby whatever meansāhas been a scruples-free premise of American ruling class authority from the society's inception to the present. The initial socioeconomic advantage, begotten by chattel slavery, was enforced by undaunted violence and the constant threat of more violence."
"Direct and unconcealed brute force and violenceāalthough clearly persisting in many quarters of societyāare today less acceptable to an increasingly sophisticated public, a public significantly remote from the methods of social and economic control common to early America. This is not a statement, however, that there is such increased civility that Americans can no longer tolerate social control of the country's under classes by force of violence; rather, it is an observation that Americans today appear to be more inclined to issue endorsement to agents and agencies of control which carry out the task, while permitting the benefactors of such control to retain a semidignified, clean-hands image of themselves."
"It is a fundamental assertion of this study that the majority society, in its fear-provoked zeal to maintain and assure its inequitable position in American society, flirted with and came dangerously close to total abandonment of the particular freedom upon which all others are ultimately dependent, the right to disagree. Moreover, it is an ancillary claim of this study that the danger has not yet passed."
"We must ally ourselves with the oppressed communities of the world. We cannot make our stand as nationalists, we cannot even make our stand as internationalists. We must place our future hopes upon the philosophy of intercommunalism, a philosophy which holds that the rise of imperialism in America transforms all other nations into oppressed communities. In revolutionary love we must make common cause with these oppressed communities."
"The FBI was most disturbed by the Panthers' survival programs providing community service. The popular free breakfast program, in which the party provided free hot breakfasts to children in Black communities throughout the United States, was, as already noted, a particular thorn in the side of J. Edgar Hoover. Finding little to criticize about the program objectively, the Bureau decided to destroy it."
"In their quest for freedom and in their attempts to prevent the oppressor from striping them of all the things they need to exist, the people see things as moving from A to B to C; they do not see things as moving from A to Z."
"Men were not created in order to obey laws. Laws are created to obey men. They are established by men and should serve men. The laws and rules which officials inflict upon poor people prevent them from functioning harmoniously in society. There is no disagreements about this function of law in any circle-the disagreement arises from the question of which men laws are to serve. Such lawmakers ignore the fact that it is the duty of the poor and unrepresented to construct rules and laws that serve their interest better. Rewriting unjust laws is a basic human right and fundamental obligation."
"The oppressor must be harassed until his doom. He must have no peace by day or by night. The slaves have always outnumbered the slavemasters. The power of the oppressor rests upon the submission of the people."
"When a mechanic wants to fix a broken-down car engine, he must have the necessary tools to do the job. When the people move for liberation they must have the basic tool of liberation: the gun."
"I expected to die. At no time before the trial did I expect to escape with my life. Yet being executed in the gas chamber did not necessarily mean defeat. It could be one more step to bring the community to a higher level of consciousness."
"The people will win a new world. Yet when I think of individuals in the revolution, I cannot predict their survival. Revolutionaries must accept this fact."
"Some see our struggle as a symbol of the trend toward suicide among Blacks. Scholars and academics, in particular, have been quick to make this accusation. They fail to perceive differences. Jumping off a bridge is not the same as moving to wipe out the overwhelming force of an oppressive army. When scholars call our actions suicidal, they should be logically consistent and describe all historical revolutionary movements in the same way. Thus the American colonialists, the French of the late eighteenth century, the Russians of 1917, the Jews of Warsaw, the Cubans, the NLF, the North Vietnameseāany people who struggle against a brutal and powerful forceāare suicidal."
"The blood, sweat, tears, and suffering of Black people are the foundations of the wealth and power of the United States of America. We were forced to build America, and if forced to, we will tear it down. The immediate result of this destruction will be suffering and bloodshed. But the end result will be the perpetual peace for all mankind."
"My fear was not of death itself, but a death without meaning. I wanted my death to be something the people could relate to, a basis for further mobilization of the community."
"I do not think life will change for the better without an assault on the establishment, which goes on exploiting the wretched of the earth. This belief lies at the heart of the concept of revolutionary suicide. Thus it is better to oppose the forces that would drive me to self-murder than to endure them. Although I risk the likelihood of death, there is at least the possibility, if not the probability, of changing intolerable conditions."
"Revolutionary suicide does not mean that I and my comrades have a death wish; it means just the opposite. We have such a strong desire to live with hope and human dignity that existence without them is impossible. When reactionary forces crush us, we must move against these forces, even at the risk of death."
"The first lesson a revolutionary must learn is that he is a doomed man. Unless he understands this, he does not grasp the essential meaning of his life."