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

Bertrand Russell

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

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

Deep Existence Language Possible
Boredom is therefore a vital problem for the moralist, since at least half the sins of mankind are caused by the fear of it.
BERTRAND RUSSELL

Deep Fear Mankind Problem Sin
Everything is vague to a degree you do not realize till you have tried to make it precise.
BERTRAND RUSSELL

Deep Philosophy Try Yourself
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
It’s easy to fall in love. The hard part is finding someone to catch you.
BERTRAND RUSSELL

Easy Fall In Love Relationship
None of our beliefs are quite true; all have at least a penumbra of vagueness and error.
BERTRAND RUSSELL

Believe Ourselves Philosophy Quite True
Mathematics rightly viewed possesses not only truth but supreme beauty.
BERTRAND RUSSELL

Beautiful Mathematics Truth View
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
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
Dogmatism is the greatest of mental obstacles to human happiness.
BERTRAND RUSSELL

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

Doubt Knowledge Philosophy World
How much longer is the world willing to endure this spectacle of wanton cruelty?
BERTRAND RUSSELL

Endurance Philosophy Willing World
Sometimes the hardest thing in life is to know which bridge to cross and which to burn.
BERTRAND RUSSELL

End Let Go Life
Men are born ignorant, not stupid; they are made stupid by education.
BERTRAND RUSSELL

Born Education Man Stupidity
One of the symptoms of an approaching nervous breakdown is the belief that one’s work is terribly important.
BERTRAND RUSSELL

Believe Important Oneself

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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