“To begin with rationality in opinion: I should define it merely as the habit of taking account of all relevant evidence in arriving at a belief. Where certainty is unattainable, a rational man will give most weight to the most… — Bertrand Russell Copy Share Image
“Pragmatism emphasizes the irrationality of opinion, and psycho-analysis emphasizes the irrationality of conduct. Both have led many people to the view that there is no such thing as an ideal rationality to which opinion and conduct might with advantage conform.… — Bertrand Russell Copy Share Image
