и снова расселл

The fact that an opinion is widely held is no evidence whatever that it is not utterly absurd; indeed in view of the silliness of the majority of mankind, a widespread belief is more likely to be foolish than sensible.
~Bertrand Russel

Исходники и предпосылки эффекта Даннинга-Крюгера

Bertrand Russell in The Triumph of Stupidity in the mid 1930s said that "The fundamental cause of the trouble is that in the modern world the stupid are cocksure while the intelligent are full of doubt." 


Even earlier, Charles Darwin, in The Descent of Man in 1871, stated "Ignorance more frequently begets confidence than does knowledge". 


http://rationalwiki.org/wiki/Dunning-Kruger_effect


И ещё Б.Рассел:


"One of the painful things about our time is that those who feel certainty are stupid, and those with any imagination and understanding are filled with doubt and indecision"