"The whole problem with the world is that fools and fanatics are always so certain of themselves, and wiser people so full of doubts."
"Philosophy arises from an unusually obstinate attempt to arrive at real knowledge. What passes for knowledge in ordinary life suffers from three defects: it is cocksure, vague and self-contradictory. The first step towards philosophy consists in becoming aware of these defects, not in order to rest content with a lazy scepticism, but in order to substitute an amended kind of knowledge which shall be tentative, precise and self-consistent."
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Source: Bertrand Russell (2009). “An Outline of Philosophy”, p.2, Routledge
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