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Not to be absolutely certain is, I think, one of the essential things in rationality.

Bertrand Russell

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

Burn Hard Learning Let Go Life
Your writing is never as good as you hoped, but never as bad as you feared.
BERTRAND RUSSELL

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

Deep Life Ourselves Way
Never try to discourage thinking, for you are sure to succeed.
BERTRAND RUSSELL

Success Thinking Try
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
In all affairs, it’s a healthy thing now and then to hang a question mark on the things you have long taken for granted.
BERTRAND RUSSELL

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

Easy Fall In Love Relationship
Men who are unhappy, like men who sleep badly, are always proud of the fact.
BERTRAND RUSSELL

Happiness Man Philosophy
Mathematics, rightly viewed, possesses not only truth but supreme beauty – a beauty cold and austere.
BERTRAND RUSSELL

Beautiful Mathematics Truth View
The search for something permanent is one of the deepest of the instincts leading men to philosophy.
BERTRAND RUSSELL

Man Philosophy Search
I think we ought always to entertain our opinions with some measure of doubt. I shouldn’t wish people dogmatically to believe any philosophy, not even mine.
BERTRAND RUSSELL

Believe Doubt Myself People Philosophy Thinking
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
Mathematics rightly viewed possesses not only truth but supreme beauty.
BERTRAND RUSSELL

Beautiful Mathematics Truth View
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
I believe that when I die I shall rot, and nothing of my ego will survive.
BERTRAND RUSSELL

Believe Death Deep Myself

Not to be absolutely certain is, I think, one of the essential things in rationality.

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Not to be absolutely certain is, I think, one of the essential things in rationality.

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