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

Bertrand Russell

Never try to discourage thinking, for you are sure to succeed.
BERTRAND RUSSELL

Success Thinking Try
Even if all the experts agree, they may well be mistaken.
BERTRAND RUSSELL

Mistake Science
Science is what you know, philosophy is what you don’t know.
BERTRAND RUSSELL

Deep Philosophy Science Yourself
The hardest thing to learn in life is which bridge to cross and which to burn.
BERTRAND RUSSELL

Burn Hard Learning Let Go Life
If there were in the world today any large number of people who desired their own happiness more than they desired the unhappiness of others, we could have paradise in a few years.
BERTRAND RUSSELL

Desire Happiness People Philosophy World
Is there any knowledge in the world that is so certain that no reasonable man could doubt it?
BERTRAND RUSSELL

Doubt Knowledge Philosophy World
It is the preoccupation with possessions, more than anything else, that prevents us from living freely and nobly.
BERTRAND RUSSELL

Deep Freedom Philosophy
What is wanted is not the will to believe, but the will to find out, which is the exact opposite.
BERTRAND RUSSELL

Believe Deep Willing
Aristotle maintained that women have fewer teeth than men; although he was twice married, it never occurred to him to verify this statement by examining his wives’ mouths.
BERTRAND RUSSELL

Himself Man Marriage Woman
I believe in using words, not fists. I believe in my outrage knowing people are living in boxes on the street. I believe in honesty. I believe in a good time. I believe in good food. I believe in sex.
BERTRAND RUSSELL

Believe Food Goodness Honesty Live Myself People Sex Word
Of all forms of caution, caution in love is perhaps the most fatal to true happiness.
BERTRAND RUSSELL

Death Happiness Love True
A happy life must be to a great extent a quiet life, for it is only in an atmosphere of quiet that true joy can live.
BERTRAND RUSSELL

Greatness Happiness Live Quiet True
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 like many people spontaneously and without effort is perhaps the greatest of all sources of personal happiness.
BERTRAND RUSSELL

Effort Greatness Happiness People Philosophy
One of the most powerful of all our passions is the desire to be admired and respected.
BERTRAND RUSSELL

Desire Ourselves Passion Power Respect
Remember your humanity, and forget the rest.
BERTRAND RUSSELL

Forget Humanity Remember 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
I do not myself feel that any person who is really profoundly humane can believe in everlasting punishment.
BERTRAND RUSSELL

Believe Feeling Myself Person Philosophy
Dogmatism is the greatest of mental obstacles to human happiness.
BERTRAND RUSSELL

Greatness Happiness Human Mental Obstacle
Whoever wishes to become a philosopher must learn not to be frightened by absurdities.
BERTRAND RUSSELL

Fear Mad Philosophy
To be without some of the things you want is an indispensable part of happiness.
BERTRAND RUSSELL

Happiness Philosophy Satisfaction
The search for something permanent is one of the deepest of the instincts leading men to philosophy.
BERTRAND RUSSELL

Man Philosophy Search
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
Anything you’re good at contributes to happiness.
BERTRAND RUSSELL

Goodness Happiness Yourself
Machines have altered our way of life, but not our instincts. Consequently, there is maladjustment.
BERTRAND RUSSELL

Deep Life Ourselves Way
Everything is vague to a degree you do not realize till you have tried to make it precise.
BERTRAND RUSSELL

Deep Philosophy Try Yourself

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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