“Control your temper. Remember, you can measure the size of a person by what makes him or her angry.”
Variant: you can measure the size of a person by what makes him or her angry
Source: How to Win Friends and Influence People
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Dale Carnegie 98
American writer and lecturer 1888–1955Related quotes

“You can tell the greatness of a man by what makes him angry”

“You can tell the size of a man by the size of the thing that makes him mad.”
Address to the State Committee of the Liberal Party in New York City, Faith in Liberalism ( pdf http://www.adlaitoday.org/ideas/archive/care1_liberalism_08-28-52.pdf) (28 August 1952)

Source: Think and Grow Rich: The Landmark Bestseller - Now Revised and Updated for the 21st Century

Source: Prajwal Hegde I am enjoying my partnership with Cara Black: Sania Mirza http://timesofindia.indiatimes.com/sports/tennis/top-stories/I-am-enjoying-my-partnership-with-Cara-Black-Sania-Mirza/articleshow/23377486.cms, The Times of India, 2 October 2013
The Secret Way of Wonder
“You can't control what you can't measure”
Controlling Software Projects, Management Measurement & Estimation, (1982), p. 3.