Who said "Thinking is difficult, that is why so few people do it."?

This quote is attributed to Russell, Bertrand.

Thinking is difficult, that is why so few people do it. - Russell, Bertrand

"Thinking is difficult, that is why so few people do it."

Russell, Bertrand Education

Philosopher-Logician British 1872–1970

"Do not fear to be eccentric in opinion, for every opinion now accepted was once eccentric."

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