– Charles R. Swindoll
– Alexander Woollcott
– Sir Arthur Conan Doyle, Dr. John H. Watson, referring to Sherlock Holmes, in "A Scandal in Bohemia"
– Ralph Waldo Emerson
– Alice Cooper, BBC6 Radio, The Bruce Dickinson show
– Jerry Coleman
– Chinese Proverb
– Miguel de Cervantes
– Gerard Houllier, UEFA Cup Final 2001 pre-match team talk
– Johathan Sacks
– Heraclitus
– Herman Hesse, Steppenwolf
– Nathan M. Pusey
– Lewis Thomas
– Lewis Thomas, The Medusa and the Snail (1979)
– Danish proverb
– Louis Armstrong
– Ty Cobb
– Theodore Roosevelt
– William Shakespeare, Henry V
– Carol Burnett
– Mehmet Murat ildan
– Eric Hoffer