Perfect rationality consists, not in believing what is true, but in attaching to every proposition a degree of belief corresponding to its degree of credibility.
Tags: skepticism-of-religion, science, russell, rationality, philosophy

Other Quotes by "Bertrand Russell"

To be able to concentrate for a considerable time is essential to difficult achievement.
Tags: concentration
Patriots always talk of dying for their country and never of killing for their country.
Tags: country, always, never, war
The whole problem with the world is that fools and fanatics are always so certain of themselves, and wiser people so full of doubts.
Tags: problem, always, world, people, wisdom, fools, fanatics, doubt, certainty
To teach how to live with uncertainty, and yet without being paralyzed by hesitation, is perhaps the chief thing that philosophy in our age can still do for those who study it.
Tags: philosophy
The time you enjoy wasting is not wasted time.
Tags: wasted, wasted-time, wasting, enjoy, time, you
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