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Famous Yuval Noah Harari Quotes

“For centuries scientists too accepted these humanist guidelines. When physicists wondered whether to get married or not, they too watched sunsets and tried to get in touch with themselves. When chemists contemplated whether to accept a problematic job offer, they too wrote diaries and had heart-to-heart talks with a good friend. When biologists debated whether to wage war or sign a peace treaty, they too voted in democratic elections. When brain scientists wrote books about their startling discoveries, they often put an inspiring Goethe quote on the first page. This was the basis for the modern alliance between science and humanism, which kept the delicate balance between the modern yang and the modern yin – between reason and emotion, between the laboratory and the museum, between the production line and the supermarket.”

ScienceHumanism
Book:Homo Deus: A History of Tomorrow
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“I never react to events in the outside world; I always react to the sensations in my own body. (...) Even when we think we react to what another person has done, to President Trump's latest tweet, or to a distant childhood memory, the truth is we always react to our immediate bodily sensations. If we are outraged that somebody insulted our nation or our god, what makes the insult unbearable is the burning sensations in the pit of our stomach and the band of pain that grips our heart. Our nation feels nothing, but our body really hurts.”

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Book:21 Lessons for the 21st Century
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“Même si la mort paraît être un objectif lointain, nous avons déjà réalisé des choses qui étaient inconcevables voici quelques siècles. En 1199, le roi Richard Coeur de Lion fut touché par une flèche à l’épaule gauche. Aujourd’hui, nous parlerions d’une blessure mineure. En 1199, cependant, en l’absence d’antibiotiques et de méthodes de stérilisation efficaces, cette blessure s’infecta et ce fut la gangrène. Au XIIe siècle, la seule façon d’arrêter la gangrène était d’amputer le membre infecté. Pour une épaule, ce n’était pas possible. La gangrène progressa, sans que personne ne pût rien faire pour aider le roi. Il mourut quinze jours plus tard dans de grandes souffrances.”

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Book:Sapiens
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“A church typically told people to trust it because it possessed the absolute truth, in the form of an infallible holy book. A scientific institution, in contrast, gained authority because it had strong self-correcting mechanisms that exposed and rectified the errors of the institution itself. It was these self-correcting mechanisms, not the technology of printing, that were the engine of the scientific revolution. In other words, the scientific revolution was launched by the discovery of ignorance. Religions of the book assumed they had access to an infallible source of knowledge.”

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Book:NEXUS: A Brief History of Infomation Networks from the Stone Age to AI (Volume.1) [Japanese Edition]
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“The scientific project starts by rejecting the fantasy of infallibility and proceeding to construct an information network that takes error to be inescapable. Sure, there is much talk about the genius of Copernicus, Darwin, and Einstein, but none of them is considered faultless. They all made mistakes, and even the most celebrated scientific tracts are sure to contain errors and lacunae. Since even geniuses suffer from confirmation bias, you cannot trust them to correct their own errors. Science is a team effort, relying on institutional collaboration rather than on individual scientists or, say, a single infallible book. Of course, institutions too are prone to error. Scientific institutions are nevertheless different from religious institutions, inasmuch as they reward skepticism and innovation rather than conformity. Scientific institutions are also different from conspiracy theories, inasmuch as they reward self-skepticism. Conspiracy theorists tend to be extremely skeptical regarding the existing consensus, but when it comes to their own beliefs, they lose all their skepticism and fall prey to confirmation bias. The trademark of science is not merely skepticism but self-skepticism, and at the heart of every scientific institution we find a strong self-correcting mechanism. Scientific institutions do reach a broad consensus about the accuracy of certain theories—such as quantum mechanics or the theory of evolution—but only because these theories have managed to survive intense efforts to disprove them, launched not only by outsiders but by members of the institution itself.”

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Book:Nexus: A Brief History of Information Networks from the Stone Age to AI
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“Populists have sought to extricate themselves from this conundrum in two different ways. Some populist movements claim adherence to the ideals of modern science and to the traditions of skeptical empiricism. They tell people that indeed you should never trust any institutions or figures of authority—including self-proclaimed populist parties and politicians. Instead, you should “do your own research” and trust only what you can directly observe by yourself. This radical empiricist position implies that while large-scale institutions like political parties, courts, newspapers, and universities can never be trusted, individuals who make the effort can still find the truth by themselves. This approach may sound scientific and may appeal to free-spirited individuals, but it leaves open the question of how human communities can cooperate to build health-care systems or pass environmental regulations, which demand large-scale institutional organization. Is a single individual capable of doing all the necessary research to decide whether the earth’s climate is heating up and what should be done about it? How would a single person go about collecting climate data from throughout the world, not to mention obtaining reliable records from past centuries? Trusting only “my own research” may sound scientific, but in practice it amounts to believing that there is no objective truth. As we shall see in chapter 4, science is a collaborative institutional effort rather than a personal quest.”

TruthSciencePopulism
Book:Nexus: A Brief History of Information Networks from the Stone Age to AI
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“Some populist movements claim adherence to the ideals of modern science and to the traditions of skeptical empiricism. They tell people that indeed you should never trust any institutions or figures of authority—including self-proclaimed populist parties and politicians. Instead, you should “do your own research” and trust only what you can directly observe by yourself. This radical empiricist position implies that while large-scale institutions like political parties, courts, newspapers, and universities can never be trusted, individuals who make the effort can still find the truth by themselves. This approach may sound scientific and may appeal to free-spirited individuals, but it leaves open the question of how human communities can cooperate to build health-care systems or pass environmental regulations, which demand large-scale institutional organization. Is a single individual capable of doing all the necessary research to decide whether the earth’s climate is heating up and what should be done about it? How would a single person go about collecting climate data from throughout the world, not to mention obtaining reliable records from past centuries? Trusting only “my own research” may sound scientific, but in practice it amounts to believing that there is no objective truth. As we shall see in chapter 4, science is a collaborative institutional effort rather than a personal quest.”

TruthSciencePopulism
Book:Nexus: A Brief History of Information Networks from the Stone Age to AI
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