I never guess. It is a capital mistake to theorize before one has data. Insensibly one begins to twist facts to suit theories, instead of theories to suit facts. —Arthur Conan Doyle mistakes knowledge error facts guessing Copy link Share Facebook X / Twitter Tumblr Email
Expert: a man who makes three correct guesses consecutively. —Laurence J. Peter guessing expertise correctness Copy link Share Facebook X / Twitter Tumblr Email