folly

as a dog returns to his vomit, so a fool repeats his folly

Foolish people are apt to repeat their missteps. A: "I can't believe Sarah is going skiing again, after she broke her leg the last time." B: "Well, as a dog returns to his vomit, so a fool repeats his folly."
See also: dog, folly, fool, repeat, return

where ignorance is bliss, 'tis folly to be wise

proverb It is better to remain unaware or ignorant of things that may otherwise cause one stress; if you don't know about something, you don't need to worry about it. From the 1742 poem "Ode on a Distant Prospect of Eton College," by Thomas Gray. I feel like all the news in the world today is depressing, and the only way to get on with your life is to completely ignore it all. As they say, where ignorance is bliss, 'tis folly to be wise. Look, I know you get stressed about what the kids eat when they stay at your mother's house, but they're happy and have plenty of energy. When ignorance is bliss, it's folly to be wise.
See also: folly, ignorance, wise
Farlex Dictionary of Idioms.

Where ignorance is bliss, 'tis folly to be wise.

Prov. If knowing something makes you unhappy, it would be better not to know it. (Also the cliché: ignorance is bliss.) Ellen: The doctor didn't tell Dad that Mom probably won't recover from her illness. Do you think we should tell him? Bill: No. It would only make him unhappy and ruin their last months together. Where ignorance is bliss, 'tis folly to be wise.
See also: folly, ignorance, wise
McGraw-Hill Dictionary of American Idioms and Phrasal Verbs.
See also:
  • as a dog returns to his vomit, so a fool repeats his folly
  • repeat
  • vomit
  • going to (do something)
  • glad-hander
  • hander
  • handers
  • ear hustler
  • flesh-presser
  • dumb ox
References in periodicals archive
Tim Morphew, zoo curator at Folly Farm, said: "The launch of Asian Adventure is the culmination of a huge amount of hard work and dedication.
Pembrokeshire zoo is offering a trip to Far East
The team at Folly Farm is on the lookout for a zoo supervisor and a zoo keeper to look after its range of amazing animals.
PICK UP PERFECT JOB AT ZOO
"We want to thank all of the people who came out to Folly Gras to have fun and we apologize for those few people who don't respect our community and have to ruin everyone else's good time," said Steve Carroll, Folly Association of Business president.
Folly Gras Festival dissolved
The folly would be lying in The Sanctuary, Golf Drive of DLF Golf and Country Club up to January 9, 2019, to attract regular visits from those who appreciate the art.
Mysterious folly at DLF Golf and Country Club charms art lovers
She tied the knot with her partner Chris in a church a couple of hundred yards down the road and then held the reception inside the grounds of Folly Farm.
The girl who grew up on Wales' biggest tourist attraction; It may be home to lions, rhinos, tarantulas and giraffes these days, but once upon a time it was just someone's back garden
The sculpture - topped by a golden globe - stands in a small area of the civic centre precinct which Jake named Folly Court close to a bench which Jake also made.
Delighted Jake wins battle to keep folly; COUNCIL U-TURN AFTER RENOVATION
Unbelievably this folly will share the same sub-station as that of another folly - the mind boggling London Array - the world's largest offshore wind farm.
We still rely on gas power; LETTERS
"There are no words to express our sorrow this morning," Folly Farm wrote on (https://www.facebook.com/follyfarm1/posts/10155361883957833) Facebook .
Fire At Connecticut Farm Kills 24 Horses
As well as being part of SIRF, Furious Folly is one of more than 80 new artworks selected as part of 14-18 NOW, the UK's official national arts programme marking the centenary of the First World War.
SIRF opener rails at follies of war
The folly was sold to a charity, Trident Reach, for just PS1 in 2013 and it is now looking at ways to transform the building after securing funding from the Heritage Lottery Fund.
What would YOU do with Tolkien's tower? PUBLIC IDEAS WANTED FOR LANDMARK THAT INSPIRED THE LORD OF THE RINGS AUTHOR
Loyal Folly helps her owner dress, picks up dropped items, lifts Katy's wheelchair footplates - and opens and closes doors.
FOLLY REALLY IS KATY'S TOP DOG; Pooch is lifeline for her owner as she prepares for a skydive
The Highlander's Folly: A Novel of Loch Moigh is the unabridged audiobook saga of Hunter, a fifteenth-century Highlander gifted by the fae and fierce in battle.
The Highlander's Folly
MORE than 100 people attended an architecture day to discuss the future of the famous Perrott's Folly tower in Edgbaston.
Talks over the future of 250-year-old landmark
THE Bell (AEI) Rugby kept the title race wide open in the AW Engraving Premier Division with a 5-2 win over leaders Folly Lane.
Three fighting for title; COVENTRY ALLIANCE
PUPILS from Ysgol Gymraeg Nant Caerau in Ely, Cardiff, were approached by Pembrokeshire tourist attraction Folly Farm to name one of its 24 new Humboldt penguins.
Pupils come up with p-p-p-perfect name for penguin; yours