"Confidence is what you have before you understand the problem."
Woody Allen (1935–), US actor, humorist, movie producer, and director
Source: Quoted in Leadership Virtuosity: A Trove of Virtuoso Ideas (Lee Thayer, 2010)
"We are the ones we have been waiting for."
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)
"If you think you can, you can. And if you think you can't, you're right."
Mary Kay Ash (1915–2001), US entrepreneur, business executive, and founder of Mary Kay Cosmetics
Source: New York Times (October 20, 1985)
"One man that has a mind and knows it can always beat ten men who haven't and don't."
George Bernard Shaw (1856–1950), Irish writer and critic
Source: The Apple Cart (1929), Act 1
"All you need in this life is ignorance and confidence; then success is sure."
Mark Twain (1835–1910), US writer
Source: Letter to Mrs Foote (December 2, 1887)
"Ignorance more frequently begets confidence than does knowledge."
Charles Darwin (1809–1882), British scientist and evolutionary theorist
Source: The Descent of Man (1871)
"Take the place and attitude to which you see your unquestionable right, and all men acquiesce."
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)
"We should do everything both cautiously and confidently at the same time."
Epictetus (55?–135?), Greek philosopher
Source: Discourses (2nd century ad), bk. 2
"For a man to achieve all that is demanded of him he must regard himself as greater than he is."
Johann Wolfgang von Goethe (1749–1832), German poet, playwright, novelist, and scientist
"Whether you believe you can, or whether you believe you can't, you're absolutely right."
Henry Ford (1863–1947), US industrialist, automobile manufacturer, and founder of Ford Motor Company
"I don't really see the hurdles. I sense them like a memory."
Edwin Moses (1955–), US athlete
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