O sistema nervoso nos homens e nos animais é composto de material neuroproteico. Esse material consiste em enormes moléculas em um estado de equilíbr… - Isaac Asimov

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Engraved portrait of Isaac Asimov, facing right

O sistema nervoso nos homens e nos animais é composto de material neuroproteico. Esse material consiste em enormes moléculas em um estado de equilíbrio elétrico muito precário. O mais ínfimo dos estímulos agitará uma delas, que vai se reestabelecer por mexer outra, a qual vai repetir o processo até que se chegue ao cérebro. O próprio cérebro é um imenso agrupamento de moléculas semelhantes, conectadas umas às outras de todas as maneiras possíveis. Já que no cérebro existe algo por volta de um elevado a décima ou a vigésima potência (ou seja, o número um seguido de vinte zeros) dessas neuroproteínas, o número possível de combinações é de uma ordem entre a décima e a vigésima potência fatorial. Trata-se de um número tão grande que, se todos os elétrons e prótons do universo fossem transformados em universos, e todos os elétrons e prótons de todos esses novos universos fossem de novo transformados em universos, então todos os elétrons e prótons de todos os universos criados assim ainda não seriam nada em comparação...

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About Isaac Asimov

Isaac Asimov (c. 2 January 1920 – 6 April 1992) was a Russian-born American biochemist who was a prolific writer of both fiction and non-fiction, his works include the Foundation series and I, Robot.

Biography information from Wikiquote · Portrait adapted from Wikimedia Commons, Phillip Leonian [1] from New York World-Telegram & Sun.[2] (Public domain / CC0)

Also Known As

Alternative Names: Isaak Osimov Paul French Asimov Isaak Ozimov Itzhak Ozimov

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A weak general could never have endangered us, obviously. A strong general during the time of a weak Emperor would never have endangered us, either; for he would have turned his arms towards a much more fruitful target. Events have shown that three-fourths of the Emperors of the last two centuries were rebel generals and rebel viceroys before they were Emperors. 'So it is only the combination of strong Emperor and strong general that can harm the Foundation; for a strong Emperor can not be dethroned easily, and a strong general is forced to turn outwards, past the frontiers. 'But, what keeps the Emperor strong? What kept Cleon strong? It's obvious. He is strong, because he permits no strong subjects. A courtier who becomes too rich, or a general who becomes too popular is dangerous. All the recent history of the Empire proves that to any Emperor intelligent enough to be strong.

I have never, in all my life, not for one moment, been tempted toward religion of any kind. The fact is that I feel no spiritual void. I have my philosophy of life, which does not include any aspect of the supernatural and which I find totally satisfying. I am, in short, a rationalist and believe only that which reason tells me is so.

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