Bertrand RussellQuotes（バートランド・ラッセルの名言・警句)

　

The fundamental cause of the trouble is that in the modern world the stupid are cocksure while the intelligent are full of doubt.
　Source:The Triumph of Stupidity (written in May 10, 1933 and pub. in Mortals and Others: Bertrand Russell's American Essays, 1931-1935, v.2：p.28
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