---
title: "1 Fatal Mistake Quotes By Bertrand Russell"
description: "1 Fatal Mistake quotes by Bertrand Russell. Plus more from Bertrand Russell and more Fatal Mistake sayings from other authors."
image: "https://sms4smile.com/quotes/i/ff7/bertrand-russell-69_facts_thinking-you-know-when-in-fact-you-don-t_955578.jpg"
---

> [Thinking you know when in fact you don't is a fatal mistake, to which we are all prone](https://sms4smile.com/quotes/bertrand-russell/thinking-you-know-when-in-fact-you-don-t-is-a-fatal-mistake-to-which/)

[Bertrand Russell](https://sms4smile.com/quotes/author/bertrand-russell/)

[Image](https://sms4smile.com/quotes/i/ff7/bertrand-russell-69_facts_thinking-you-know-when-in-fact-you-don-t_955578.jpg)

## More by Bertrand Russell

> [ If the State does not acquire supremacy over \[vast private\] enterprises, it becomes their puppet, and they become the real State. ](https://sms4smile.com/quotes/bertrand-russell/if-the-state-does-not-acquire-supremacy-over-vast-private-enterprises/)

[Bertrand Russell](https://sms4smile.com/quotes/author/bertrand-russell/)

> [That the world is in a bad shape is undeniable, but there is not the faintest reason in history to suppose that Christianity offers…](https://sms4smile.com/quotes/bertrand-russell/that-the-world-is-in-a-bad-shape-is-undeniable-but-there-is-not-the/)

[Bertrand Russell](https://sms4smile.com/quotes/author/bertrand-russell/)

> [All movements go too far.](https://sms4smile.com/quotes/bertrand-russell/all-movements-go-too-far/)

[Bertrand Russell](https://sms4smile.com/quotes/author/bertrand-russell/)

> [Those who advocate common usage in philosophy sometimes speak in a manner that suggests the mystique of the 'common man.'](https://sms4smile.com/quotes/bertrand-russell/those-who-advocate-common-usage-in-philosophy-sometimes-speak-in-a/)

[Bertrand Russell](https://sms4smile.com/quotes/author/bertrand-russell/)

> [“Such, in outline, but even more purposeless, more void of meaning, is the world which Science presents for our belief. Amid such a world,…](https://sms4smile.com/quotes/bertrand-russell/such-in-outline-but-even-more-purposeless-more-void-of-meaning-is-the/)

[Bertrand Russell](https://sms4smile.com/quotes/author/bertrand-russell/)

> [Dr. Arnold . . . the admired reformer of public schools, came across some cranks who thought it a mistake to flog boys. Anyone…](https://sms4smile.com/quotes/bertrand-russell/dr-arnold-the-admired-reformer-of-public-schools-came-across-some/)

[Bertrand Russell](https://sms4smile.com/quotes/author/bertrand-russell/)

> [Of all evils of war the greatest is the purely spiritual evil: the hatred, the injustice, the repudiation of truth, the artificial conflict.](https://sms4smile.com/quotes/bertrand-russell/of-all-evils-of-war-the-greatest-is-the-purely-spiritual-evil-the/)

[Bertrand Russell](https://sms4smile.com/quotes/author/bertrand-russell/)

> [Aristotle maintained that women have fewer teeth than men; although he was twice married, it never occurred to him to verify this statement by…](https://sms4smile.com/quotes/bertrand-russell/aristotle-maintained-that-women-have-fewer-teeth-than-men-although-he/)

[Bertrand Russell](https://sms4smile.com/quotes/author/bertrand-russell/)

> [If an opinion contrary to your own makes you angry, that is a sign that you are subconsciously aware of having no good reason…](https://sms4smile.com/quotes/bertrand-russell/if-an-opinion-contrary-to-your-own-makes-you-angry-that-is-a-sign/)

[Bertrand Russell](https://sms4smile.com/quotes/author/bertrand-russell/)

> [I cannot escape from the conclusion that the great ages of progress have depended upon a small number of individuals of transcendent ability.](https://sms4smile.com/quotes/bertrand-russell/i-cannot-escape-from-the-conclusion-that-the-great-ages-of-progress/)

[Bertrand Russell](https://sms4smile.com/quotes/author/bertrand-russell/)

> [I think it would be just to say the most essential characteristic of mind is memory, using this word in its broadest sense to…](https://sms4smile.com/quotes/bertrand-russell/i-think-it-would-be-just-to-say-the-most-essential-characteristic-of/)

[Bertrand Russell](https://sms4smile.com/quotes/author/bertrand-russell/)

> [The newspapers at one time said that I was dead but after carefully examining the evidence I came to the conclusion that this statement…](https://sms4smile.com/quotes/bertrand-russell/the-newspapers-at-one-time-said-that-i-was-dead-but-after-carefully/)

[Bertrand Russell](https://sms4smile.com/quotes/author/bertrand-russell/)

> [“Persecution is used in theology, not in arithmetic, because in arithmetic there is knowledge, but in theology there is only opinion.”](https://sms4smile.com/quotes/bertrand-russell/persecution-is-used-in-theology-not-in-arithmetic-because-in/)

[Bertrand Russell](https://sms4smile.com/quotes/author/bertrand-russell/)

> [“Many orthodox people speak as though it were the business of sceptics to disprove received dogmas rather than of dogmatists to prove them. This…](https://sms4smile.com/quotes/bertrand-russell/many-orthodox-people-speak-as-though-it-were-the-business-of-sceptics/)

[Bertrand Russell](https://sms4smile.com/quotes/author/bertrand-russell/)

> [There is no greater reason for children to honour parents than for parents to honour children except, that while the children are young, the…](https://sms4smile.com/quotes/bertrand-russell/there-is-no-greater-reason-for-children-to-honour-parents-than-for/)

[Bertrand Russell](https://sms4smile.com/quotes/author/bertrand-russell/)

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