Source: Friday (1982), Chapter 33 (p. 353)
“Exaggeration of confidence,” he said, “is a fault in people who don’t know their business.”
This is an early statement of what would come to be known as the Dunning–Kruger effect.
Source: Tactics of Mistake (1971), Chapter 20 (p. 315).
“Those who are wise won't be busy, and those who are too busy can't be wise.”
Source: The Importance of Living (1937), p. 150
“Happiness is the feeling we experience when we are too busy to be miserable.”
Tom Masson in: The Century Illustrated Monthly Magazine, Vol. 61 (1901). p. 319.
“Everyone in the South has no time for reading because they are all too busy writing.”
“Too busy with the crowded hour to fear to live or die.”
Quatrains, Nature
Bartlett's Familiar Quotations, 10th ed. (1919)
“If you are too busy to think then you are too busy.”
Popular Quotes, Essentialism: The Disciplined Pursuit of Less, Twitter
Oui interview (1979)
This is the radio personality Harry Harrison (born 20 September 1930), quoted in Think Vol. 21, No. 1 (January 1955), and The Book of Positive Quotations (2007) edited by John Cook, Steve Deger, and Leslie Ann Gibson
Misattributed
CNBC: "Apple's Tim Cook shares a rule that leaders should live by" https://www.cnbc.com/2018/06/26/apple-ceo-tim-cook-advice-for-leaders-on-speaking-out.html (26 June 2018)
Life magazine (December 1979) http://books.google.com/books?id=w5-GR-qtgXsC&pg=PA117&dq=%22Too+bad+that+all+the+people+who+know+how+to+run+the+country+are+busy+driving+taxicabs+and+cutting+hair.%22&sig=uj07kFeO7wja3cpTdX31dWR_pjs
