Also found in: Dictionary, Thesaurus, Medical, Legal, Acronyms, Encyclopedia, Wikipedia.

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

repeat (oneself)

To repeat what one has previously done or stated. Be sure to take detailed notes, because I will not repeat myself. People surprised at the sudden shift in public opinion would do well to remember that history tends to repeat itself.
See also: repeat

History repeats itself.

Prov. The same kinds of events seem to happen over and over. It seems that history is about to repeat itself for that poor country; it is about to be invaded again. Alan: The country is headed for an economic depression. Jane: How do you know? Alan: History repeats itself. The conditions now are just like the conditions before the last major depression.
See also: history, itself, repeat

repeat oneself

Express oneself in the same way or with the same words, as in Grandma forgets she has told us this story before and repeats herself over and over, or This architect tends to repeat himself-all his houses look alike. A well-known version of this idiom is the proverb History repeats itself, first recorded (in English) in 1561. For example, Her mother also married when she was 18-history repeats itself. [Mid-1800s]
See also: repeat
References in periodicals archive ?
Patients with complex intra-abdominal sepsis who require multiple repeat laparotomies are a high-risk group and decision-making in this cohort is difficult.
Median Time to Repeat Test (minutes) = Median Elapsed Time Between Initial and Repeat Analysis.
Patients with a raised pressure of >21mmHg after measurement by applanation tonometry are then referred to secondary care that is there is only one repeat IOP reading.
He added: "If we didn't play any repeats, we wouldn't be able to afford to do any original drama in the afternoons and we wouldn't be able to afford to continue doing campaigning shows.
For random error out-of-control conditions, only repeat-sampling strategies 3 and 4--which repeat all QC concentration levels when repeat testing is performed--are effective.
It's not just online streaming that's causing repeat numbers to shrink.
Repeat for 5 movements, and then perform 5 pushups.
Nationwide, the analysts estimate, 540,174 primary and 371,863 repeat cesareans were performed in 2001.
When our staff accountants write memos, I occasionally grumble when they repeat some words over and over; I think it makes us look unprofessional.
We did imply what "the two most powerful words" are by his demonstration of two competing headlines, but we didn't explicitly repeat that the winning "IF .
March 25, 2004), the Florida Supreme Court adopted extensive amendments to the Florida Supreme Court Approved Family Law Forms governing domestic, repeat, and dating violence.
In a double-blind, placebo-controlled crossover study, 96 healthy volunteers who were genotyped for the dopamine transporter variable number of tandem repeats polymorphism and found to have variant alleles of the 40-bp repeat, received placebo, and 10 mg and 20 mg of oral d-amphetamine in random order.
Such "repeats" usually repeat themselves fewer than 30 times, but research has identified 18 human genetic diseases associated with expansion of the number of these repeats, sometimes into the thousands.