Bertrand Russell published a slightly different version in his 1933 essay "The Triumph of Stupidity".
The fundamental cause of the trouble is that in the modern world the stupid are cocksure while the intelligent are full of doubt.
He also expressed a similar idea in another popular variation:
The whole problem with the world is that fools and fanatics are always so certain of themselves, and wiser people so full of doubts.
Bertrand Russell published a slightly different version in his 1933 essay "The Triumph of Stupidity".
> The fundamental cause of the trouble is that in the modern world the stupid are cocksure while the intelligent are full of doubt.
He also expressed a similar idea in another popular variation:
> The whole problem with the world is that fools and fanatics are always so certain of themselves, and wiser people so full of doubts.
