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Carlo Rovelli

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“We are a species which is naturally moved by curiosity, the only one left of a group of species (the genus Homo) made up of a dozen equally curious species. The other species in the group have already become extinct; some, like the Neanderthals, quite recently, roughly thirty thousand years ago. It is group of species which evolved in Africa, akin to the hierarchical and quarrelsome chimpanzees -- and even more closely akin to the bonobos, the small, peaceful, cheerfully egalitarian and promiscuous type of chimps. A group of species which repeatedly went out of Africa in order to explore new worlds, and went far: as far, eventually, as Patagonia -- and as far, eventually, as the moon. It is not against our nature to be curious: it is in our nature to be so.”

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Book:Seven Brief Lessons on Physics
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“Our moral values, our emotions, our loves are no less real for being part of nature, for being shared with the animal world, or for being determined by the evolution which our species has undergone over millions of years. Rather, they are more valuable as a result of this: they are real. They are the complex reality of which we are made. Our reality is tears and laughter, gratitude and altruism, loyalty and betrayal, the past which haunts us and serenity.”

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Book:Seven Brief Lessons on Physics
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“Science is born from this act of humility: not trusting blindly in our past knowledge and our intuition. Not believing what everyone says. Not having absolute faith in the accumulated knowledge of our fathers and grandfathers. We learn nothing if we think we already know the essentials, if we assume that they were written in a book or known by the elders of the tribe. The centuries in which people had faith in what they believed were the centuries in which little new was learned. Had they trusted the knowledge of their fathers, Einstein, Newton, and Copernicus would never have called things into question and would never have been able to move our knowledge forward (259, trsl. Carnell & Segre)”

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Book:La realtà non è come ci appare: La struttura elementare delle cose
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“I am my mother’s caresses, and the serene kindness with which my father calmly guided me; I am my adolescent travels; I am what my reading has deposited in layers in my mind; I am my loves, my moments of despair, my friendships, what I’ve written, what I’ve heard; the faces engraved on my memory. I am, above all, the one who a minute ago made a cup of tea for himself. The one who a moment ago typed the word “memory” into his computer. The one who just composed the sentence that I am now completing. If all this disappeared, would I still exist? I am this long, ongoing novel. My life consists of it.”

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Book:L'ordine del tempo
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“There is no single time: there is a different duration for every trajectory; and time passes at different rhythms according to place and speed. It is not directional; the difference between past and future does not exist in the elementary euqations of the world; its oritentation is merely a contigent aspect that appears when we look at things and neglect the details. In this blurred view, the past of the universe was in a curioysly “particular” state. The notion of the “present” does not work; in the vast universe there is nothing that we can resonably call “present”. The substratum that determines the duration of time is not an independent entity, different from the others that make up the world; it is an aspect of a dynamic field. It jumps, fluactuates, materializies only by interacting, and is not to be found beneath a minimum scale.”

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Book:The Order of Time
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“In qualunque angolo dell'universo troviamo vertiginosi pozzi di strati di realtà. In questi strati siamo riusciti a riconoscere regolarità, sulle quali abbiamo raccolto informazione rilevante per noi, che ci permette di farci un'immagine coerente dei singoli strati. Ciascuno è un'approssimazione. La realtà non è divisa in livelli. I livelli in cui la scomponiamo, gli oggetti in cui la dividiamo, sono i modi in cui la Natura si correla in noi, in quelle configurazioni dinamiche di eventi fisici nel nostro cervello che chiamiamo concetti. La separazione della realtà in livelli è relativa al nostro modo di interagire con essa.”

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Book:Helgoland
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“We never really see time. We see only clocks. If you say this object moves, what you really mean is that this object is here when the hand of your clock is here, and so on. We say we measure time with clocks, but we see only the hands of the clocks, not time itself. And the hands of a clock are a physical variable like any other. So in a sense we cheat because what we really observe are physical variables as a function of other physical variables, but we represent that as if everything is evolving in time.”

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Author:Carlo Rovelli
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