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Is there any knowledge in the world that is so certain that no reasonable man could doubt it?

Bertrand Russell

And if there were a God, I think it very unlikely that he would have such an uneasy vanity as to be offended by those who doubt his existence.
BERTRAND RUSSELL

Doubt Existence God Myself Religion Thinking
Conventional people are roused to fury by departure from convention, largely because they regard such departure as a criticism of themselves.
BERTRAND RUSSELL

Angry Leave People Philosophy
Fear is the parent of cruelty, and therefore it is no wonder if cruelty and religion have gone hand in hand.
BERTRAND RUSSELL

Deep Fear Hands Religion
How much longer is the world willing to endure this spectacle of wanton cruelty?
BERTRAND RUSSELL

Endurance Philosophy Willing World
Man is a credulous animal, and must believe something; in the absence of good grounds for belief, he will be satisfied with bad ones.
BERTRAND RUSSELL

Absence Animal Believe Man Philosophy Satisfaction
Sometimes the hardest thing in life is to know which bridge to cross and which to burn.
BERTRAND RUSSELL

End Let Go Life
The hardest thing to learn in life is which bridge to cross and which to burn.
BERTRAND RUSSELL

Burn Hard Learning Let Go Life
The fundamental concept in social science is power, in the same sense in which energy is the fundamental concept in physics.
BERTRAND RUSSELL

Energy Fundamental Power Science
It is a waste of energy to be angry with a man who behaves badly, just as it is to be angry with a car that won’t go.
BERTRAND RUSSELL

Angry Energy Philosophy Waste
Philosophy, from the earliest times, has made greater claims, and achieved fewer results, than any other branch of learning.
BERTRAND RUSSELL

Greatness Learning Philosophy Time
The use of self-control is like the use of brakes on the train. It is useful when you find yourself in the wrong direction but merely harmful when the direction is right.
BERTRAND RUSSELL

Control Direction Harm Wrong Yourself
To be able to fill leisure intelligently is the last product of civilization, and at present, very few people have reached this level.
BERTRAND RUSSELL

Intelligence Prepare Present
Life is nothing but a competition to be the criminal rather than the victim.
BERTRAND RUSSELL

Crime Deep Life Philosophy Reality
Remember your humanity, and forget the rest.
BERTRAND RUSSELL

Forget Humanity Remember Yourself
It has been said that man is a rational animal. All my life I have been searching for evidence that could support this.
BERTRAND RUSSELL

Animal Evidence Life Man Myself Philosophy Search Support
No one gossips about other people’s secret virtues.
BERTRAND RUSSELL

People Secret Virtue

Is there any knowledge in the world that is so certain that no reasonable man could doubt it?

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Is there any knowledge in the world that is so certain that no reasonable man could doubt it?

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