---
title: "5 Fifty Quotes By Isaac Asimov"
description: "5 Fifty quotes by Isaac Asimov. Plus more from Isaac Asimov and more Fifty sayings from other authors."
image: "https://sms4smile.com/quotes/i/308/isaac-asimov-309_book_having-reached-451-books-as-of-now-doesn_453401.jpg"
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> [Having reached 451 books as of now doesn't help the situation. If I were to be dying now, I would be murmuring,…](https://sms4smile.com/quotes/isaac-asimov/having-reached-451-books-as-of-now-doesn-t-help-the-situation-if-i/)

[Isaac Asimov](https://sms4smile.com/quotes/author/isaac-asimov/)

[Image](https://sms4smile.com/quotes/i/308/isaac-asimov-309_book_having-reached-451-books-as-of-now-doesn_453401.jpg)

> [It took me thirty-six years; and, in some fifty stories, ranging in length from short-shorts to novels, I think I must have…](https://sms4smile.com/quotes/isaac-asimov/it-took-me-thirty-six-years-and-in-some-fifty-stories-ranging-in/)

[Isaac Asimov](https://sms4smile.com/quotes/author/isaac-asimov/)

[Image](https://sms4smile.com/quotes/i/333/isaac-asimov-309_aspect_it-took-me-thirty-six-years-and-in-some_1298119.jpg)

> [In all the known history of Mankind, advances have been made primarily in physical technology; in the capacity of handling the inanimate…](https://sms4smile.com/quotes/isaac-asimov/in-all-the-known-history-of-mankind-advances-have-been-made-primarily/)

[Isaac Asimov](https://sms4smile.com/quotes/author/isaac-asimov/)

[Image](https://sms4smile.com/quotes/i/597/isaac-asimov-309_capacity_in-all-the-known-history-of-mankind-adva_1471636.jpg)

> [The Tyranni rule fifty worlds; they are outnumbered hundreds to one. In such a position, simple force is insufficient. Devious methods, intrigue,…](https://sms4smile.com/quotes/isaac-asimov/the-tyranni-rule-fifty-worlds-they-are-outnumbered-hundreds-to-one-in/)

[Isaac Asimov](https://sms4smile.com/quotes/author/isaac-asimov/)

[Image](https://sms4smile.com/quotes/i/a1d/isaac-asimov-309_assassination_the-tyranni-rule-fifty-worlds-they-are-o_2548755.jpg)

> [Fifty years," I hackneyed, "is a long time." "Not when you're looking back at them," she said. "You wonder how they vanished…](https://sms4smile.com/quotes/isaac-asimov/fifty-years-i-hackneyed-is-a-long-time-not-when-you-re-looking-back/)

[Isaac Asimov](https://sms4smile.com/quotes/author/isaac-asimov/)

[Image](https://sms4smile.com/quotes/i/7f6/isaac-asimov-309_fifty_fifty-years-i-hackneyed-is-a-long-time-n_3133907.jpg)

## Other authors on Fifty

## More by Isaac Asimov

> [The strain of anti-intellectualism has been a constant thread winding its way through our political and cultural life, nurtured by the false notion that…](https://sms4smile.com/quotes/isaac-asimov/the-strain-of-anti-intellectualism-has-been-a-constant-thread-winding/)

[Isaac Asimov](https://sms4smile.com/quotes/author/isaac-asimov/)

> [Suppose that we are wise enough to learn and know-and yet not wise enough to control our learning and knowledge, so that we use…](https://sms4smile.com/quotes/isaac-asimov/suppose-that-we-are-wise-enough-to-learn-and-know-and-yet-not-wise/)

[Isaac Asimov](https://sms4smile.com/quotes/author/isaac-asimov/)

> [Uncertainty that comes from knowledge (knowing what you don't know) is different from uncertainty coming from ignorance.](https://sms4smile.com/quotes/isaac-asimov/uncertainty-that-comes-from-knowledge-knowing-what-you-don-t-know-is/)

[Isaac Asimov](https://sms4smile.com/quotes/author/isaac-asimov/)

> [“Don't you see? It's Galaxy-wide. It's a worship of the past. It's a deterioration - a stagnation!”](https://sms4smile.com/quotes/isaac-asimov/don-t-you-see-it-s-galaxy-wide-it-s-a-worship-of-the-past-it-s-a/)

[Isaac Asimov](https://sms4smile.com/quotes/author/isaac-asimov/)

> [So the universe is not quite as you thought it was. You'd better rearrange your beliefs, then. Because you certainly can't rearrange the universe.](https://sms4smile.com/quotes/isaac-asimov/so-the-universe-is-not-quite-as-you-thought-it-was-you-d-better/)

[Isaac Asimov](https://sms4smile.com/quotes/author/isaac-asimov/)

> [It is in meeting the great tests that mankind can most successfully rise to great heights. Out of danger and restless insecurity comes the…](https://sms4smile.com/quotes/isaac-asimov/it-is-in-meeting-the-great-tests-that-mankind-can-most-successfully/)

[Isaac Asimov](https://sms4smile.com/quotes/author/isaac-asimov/)

> [“It might seem to you, Peter, that a truck driver, one step above an ape in your view, can't remember. But truck drivers can…](https://sms4smile.com/quotes/isaac-asimov/it-might-seem-to-you-peter-that-a-truck-driver-one-step-above-an-ape/)

[Isaac Asimov](https://sms4smile.com/quotes/author/isaac-asimov/)

> [When life is so harsh that a man loses all hope in himself, then he raises his eyes to a shining rock, worshipping it,…](https://sms4smile.com/quotes/isaac-asimov/when-life-is-so-harsh-that-a-man-loses-all-hope-in-himself-then-he/)

[Isaac Asimov](https://sms4smile.com/quotes/author/isaac-asimov/)

> [“You are a military man and should know better. If there is one science into which man has probed continuously and successfully, it is…](https://sms4smile.com/quotes/isaac-asimov/you-are-a-military-man-and-should-know-better-if-there-is-one-science/)

[Isaac Asimov](https://sms4smile.com/quotes/author/isaac-asimov/)

> [“temperatura constante de mais ou menos 21 graus”](https://sms4smile.com/quotes/isaac-asimov/temperatura-constante-de-mais-ou-menos-21-graus/)

[Isaac Asimov](https://sms4smile.com/quotes/author/isaac-asimov/)

> [“Human beings can tolerate an immortal robot, for it doesn't matter how long a machine lasts, but they cannot tolerate an immortal human being…](https://sms4smile.com/quotes/isaac-asimov/human-beings-can-tolerate-an-immortal-robot-for-it-doesn-t-matter-how/)

[Isaac Asimov](https://sms4smile.com/quotes/author/isaac-asimov/)

> [“if people believe this, they would act on that belief. Many a prophecy, by the mere force of its being believed, is transmuted”](https://sms4smile.com/quotes/isaac-asimov/if-people-believe-this-they-would-act-on-that-belief-many-a-prophecy/)

[Isaac Asimov](https://sms4smile.com/quotes/author/isaac-asimov/)

> [I do not use airplanes. They strike me as unsporting. You can have an automobile accident-and survive. You can be on a sinking ship-and…](https://sms4smile.com/quotes/isaac-asimov/i-do-not-use-airplanes-they-strike-me-as-unsporting-you-can-have-an/)

[Isaac Asimov](https://sms4smile.com/quotes/author/isaac-asimov/)

> [There are many aspects of the universe that still cannot be explained satisfactorily by science; but ignorance implies only ignorance that may someday be…](https://sms4smile.com/quotes/isaac-asimov/there-are-many-aspects-of-the-universe-that-still-cannot-be-explained/)

[Isaac Asimov](https://sms4smile.com/quotes/author/isaac-asimov/)

> [A robot must obey the orders given it by human beings except where such orders would conflict with the First Law. \[The Second Law…](https://sms4smile.com/quotes/isaac-asimov/a-robot-must-obey-the-orders-given-it-by-human-beings-except-where/)

[Isaac Asimov](https://sms4smile.com/quotes/author/isaac-asimov/)

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