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the best-laid schemes o' mice an' men gang aft a-gley

proverb Said when something ends poorly or differently than expected, despite preparations for success. It comes from Robert Burns' poem "To a Mouse," which itself is a play on the proverb "the best-laid plans of mice and men oft go astray." ("Gang aft a-gley" means "go oft astray" in Scottish vernacular.) I always thought our marriage was stable and that we'd be together forever. I guess it's true what they say, though—the best-laid schemes o' mice an' men gang aft a-gley. A: "I've been working on this project for six months, and now, right before it's due, they tell me they want something completely different." B: "That's rough. The best-laid schemes o' mice an' men gang aft a-gley, I suppose."
See also: aft, gang, men, mice, scheme
Farlex Dictionary of Idioms. © 2022 Farlex, Inc, all rights reserved.

best-laid plans of mice and men oft(en) go astray,

 and best-laid schemes o' mice an' men gang aft a-gley.
Prov. Things often go wrong even though you have carefully planned what you are going to do. (The gang aft a-gley version is Scots dialect, and comes from Robert Burns' poem "To a Mouse.") Jill: I reserved a hotel room for us three weeks ago, but now the clerk says he has no record of our reservation. So much for our fun weekend in the city. Jane: Well, these things happen. The best-laid plans of mice and men oft go astray. I had all the arrangements made for my party, and then the guest of honor got sick and I had to call the whole thing off. The best-laid schemes of mice and men gang aft a-gley. If a little rain can ruin the best-laid plans of mice and men, think what an earthquake might do!
See also: and, astray, go, men, mice, of, oft, plan
McGraw-Hill Dictionary of American Idioms and Phrasal Verbs. © 2002 by The McGraw-Hill Companies, Inc.
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Functional diversity as determined as Shannon diversity index (H') of total respiration response following the addition of 15 substrates to baseline, urine and water treatments (soil types averaged; n = 27) and for Allophanic (n = 27), Brown (n = 9), Gley (n = 27) and Recent (n = 18) soil orders (treatments averaged).
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Overall, Allophanic soils had greater amounts of mineralisable OC than non-Allophanic soils, but there was no evidence for differences in mineralisable OC among the other Soil Orders (Brown, Gley, Pallic, Recent) under either land use.
All but the wettest VWC step of the Pumice and Gley soils were done at temperatures between 3.1 and 4.9[degrees]C, with an average of 4.1[degrees]C.
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