“Resentment is one of the few emotions that never lets you down, but it’s useless. In fact, it’s worse than useless, it’s harmful, and we all suffer from it at some time in our lives.”
CBC Ideas Interview (podcast) (September 25, 2006)
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Theodore Dalrymple 96
English doctor and writer 1949Related quotes

[Peter Barlow, Second report addressed to the directors and proprietors of the London and Birmingham Railway company, founded on an inspection of, and experiments made on the Liverpool and Manchester railway, B. Fellowes, 1835, 4]

“Lord, let me not live to be useless!”
Journal (22 December 1763)
General sources
“Never assume that any fact is useless until it is so proven.”
Source: Short fiction, Midsummer Century (1972), Chapter 9 (p. 62)

“Emotions are useless during business hours.”
"Zigzags of Treachery" (published in Black Mask, 1 March 1924)
Short Stories

“God grant that I may never live to be useless!”
Source: How To Pray: The Best of John Wesley on Prayer

The cowboy in autumn https://world.wng.org/2016/04/the_cowboy_in_autumn (May 14, 2016)