A foolish faith in authority is the greatest enemy of truth.
Albert Einstein

Science is the belief in the ignorance of experts.
Richard Feynman

The first principle is that you must not fool yourself – and you are the easiest person to fool.
Richard Feynman

Ignorance more frequently begets confidence than does knowledge.
Charles Darwin

An expert is a man who has made all the mistakes that can be made in a very narrow field.
Niels Bohr

The more interviews that an expert had done with the press… the worse his predictions tended to be.
Nate Silver

Nothing would be more fatal than for the Government of States to get in the hands of experts. Expert knowledge is limited knowledge, and the unlimited ignorance of the plain man who knows where it hurts is a safer guide than any rigorous direction of a specialized character.
Winston Churchill

I am obliged to confess I should sooner live in a society governed by the first two thousand names in the Boston telephone directory than in a society governed by the two thousand faculty members of Harvard University.
William F Buckley

My brother-in-law died. He was a karate expert, then joined the army. The first time he saluted, he killed himself.
Henny Youngman

The tyranny of experts
The Tyranny of Experts: Economists, Dictators, and the Forgotten Rights of the Poor 
by William Easterly