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Science is what you know, philosophy is what you don’t know.

Bertrand Russell

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

Doubt Knowledge Philosophy World
The demand for certainty is one that is natural to man but is nevertheless an intellectual vice.
BERTRAND RUSSELL

Man Philosophy
It seems to me fundamental dishonesty, and a fundamental treachery to intellectual integrity to hold a belief because you think it’s useful and not because you think it’s true.
BERTRAND RUSSELL

Believe Fundamental Honesty Integrity Myself Philosophy Thinking Yourself
Few people can be happy unless they hate some other person, nation, or creed.
BERTRAND RUSSELL

Happiness Hate People Person
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
Do not feel envious of the happiness of those who live in a fool’s paradise, for only a fool will think that it is happiness.
BERTRAND RUSSELL

Deep Feeling Happiness Live
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
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
Science is what you know, philosophy is what you don’t know.
BERTRAND RUSSELL

Deep Philosophy Science Yourself
We know very little, and yet it is astonishing that we know so much, and still more astonishing that so little knowledge can give us so much power.
BERTRAND RUSSELL

Deep Knowledge Philosophy
To write a tragedy, a man must feel the tragedy. To feel tragedy, a man must be aware of the world in which he lives. Not only with his mind, but with his blood and sinews.
BERTRAND RUSSELL

Deep Feeling Man Tragedy Writing
Language serves not only to express thought but to make possible thoughts that could not exist without it.
BERTRAND RUSSELL

Deep Existence Language Possible
Science may set limits to knowledge, but should not set limits to imagination.
BERTRAND RUSSELL

Imagination Knowledge Limitation Science
The secret of happiness is very simple: let your interests be as wide as possible, and let your reactions to the things and persons that interest you be as far as possible friendly rather than hostile.
BERTRAND RUSSELL

Friendship Happiness Philosophy Secret Yourself
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
I say quite deliberately that the Christian religion, as organized in its churches, has been and still is the principal enemy of moral progress in the world.
BERTRAND RUSSELL

Enemy Quite Religion World

Science is what you know, philosophy is what you don’t know.

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Science is what you know, philosophy is what you don’t know.

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