-
Woody Allen (1935–), US actor, humorist, movie producer, and director
Source: Quoted in Leadership Virtuosity: A Trove of Virtuoso Ideas (Lee Thayer, 2010) -
Barack Obama (1961–), US president
Source: Speech while campaigning for the Democratic Party’s nomination for president (February 5, 2008) -
"Nothing has ever been achieved except by those who dared believe that something inside of them was superior to circumstances."Bruce Barton (1886–1967), US advertising executive and author
Source: Quoted in Fearless Interviewing (Marky Stein, 2002) -
Mary Kay Ash (1915–2001), US entrepreneur, business executive, and founder of Mary Kay Cosmetics
Source: New York Times (October 20, 1985) -
George Bernard Shaw (1856–1950), Irish writer and critic
Source: The Apple Cart (1929), Act 1 -
Mark Twain (1835–1910), US writer
Source: Letter to Mrs Foote (December 2, 1887) -
Charles Darwin (1809–1882), British scientist and evolutionary theorist
Source: The Descent of Man (1871) -
Ralph Waldo Emerson (1803–1882), US essayist, lecturer, and poet
Source: Journals (1836) -
"Attempt easy tasks as if they were difficult, and difficult as if they were easy: in the one case that confidence may not fall asleep, in the other that it may not be dismayed."Baltasar Gracián (1601–1658), Spanish writer and priest
Source: The Art of Worldly Wisdom (1647) -
Epictetus (55?–135?), Greek philosopher
Source: Discourses (2nd century ad), bk. 2 -
Johann Wolfgang von Goethe (1749–1832), German poet, playwright, novelist, and scientist
Source: Attributed -
Henry Ford (1863–1947), US industrialist, automobile manufacturer, and founder of Ford Motor Company
Source: Attributed -
Edwin Moses (1955–), US athlete
Source: Attributed

