“Tut, man, decide promptly, but never give any reasons for your decisions. Your decisions may be right, but your reasons are sure to be wrong.”
When asked by an army officer, appointed governor of a west Indies island and who had no experience in law, how to apply the law. Quoted by John Cordy Jeaffreson in A Book About Lawyers http://books.google.com/books?id=lUpqPJSlBS8C&q="tut+man+decide+promptly+but+never+give+any+reasons+for+your+decisions+your+decisions+may+be+right+but+your+reasons+are+sure+to+be+wrong"&pg=PA85#v=onepage, Volume 1 (1867).
Help us to complete the source, original and additional information
William Murray, 1st Earl of Mansfield 7
British judge 1705–1793Related quotes

“Never give your enemies any more reason than they already have to go on hating you.”
Johnson, James W. (2002). Arizona Politicians: The Noble and the Notorious, illustrations by David `Fitz' Fitzsimmons, Tucson: University of Arizona Press. pp 149-150. ISBN 0-8165-2203-0.

The personal decision http://indianexpress.com/article/entertainment/entertainment-others/unlike-my-character-i-am-very-loud-drashti/

“A person who says "it's your decision" is informing you that your decision sucks.”
Source: The Six Rules of Maybe

“Trust people, until they give you a reason not to. And then never turn your back”
Source: The Longest Ride

“It is your decisions, and not your conditions, that determine your destiny.”
Variant: It is in your moments of decision that your destiny is shaped.

“It is in your moments of decision that your destiny is shaped.”