recommendation

self-praise is no recommendation (at all)

proverb
1. Praise of oneself is worth nothing, as one cannot be objective of one's own work or accomplishments. So many companies claim to be the best in the business at this or that in their marketing, but self-praise is no recommendation, so I can never take them seriously. A: "This is the best work we've ever done. People are going to absolutely go crazy for it!" B: "Self-praise is no recommendation at all, Jim. We'll have to wait and see how it does on the market."
2. Praising oneself reveals one's arrogance or selfishness, which in turn lowers other's opinion of one. He's constantly bragging about how much money he makes and how important his job is, but he doesn't have any friends because no one can stand to be around him! Self-praise is no recommendation, after all. A: "Would you agree that you're one of the best musicians in the world right now?" B: "Self-praise is no recommendation at all, so I don't think it would be very seemly of me to answer that."
See also: no, recommendation
Farlex Dictionary of Idioms.

Self-praise is no recommendation.

Prov. If you praise yourself, people will think that you are boastful and will not respect you. After listening to the lawyer brag about his achievements for a solid half hour, I decided I would find someone else to handle my case. Self-praise is no recommendation.
See also: no, recommendation
McGraw-Hill Dictionary of American Idioms and Phrasal Verbs.
See also:
  • best defense is a good offense
  • chickens come home to roost
  • chickens come home to roost, one's
  • teach a man to fish
  • village
  • it takes a village
  • a good example is the best sermon
  • all cats are gray after dark/at night
  • a man is judged by his deeds, not by his words
  • actions speak louder than words
References in periodicals archive
Step two: Clients test the effectiveness of different recommendation strategies (combinations of algorithms and rules) by starting an A/B or multivariate test.
Regarding sell recommendations, evidence in this study shows that prices of Cramer's sell picks do experience lower stock prices, and the declines in prices are significantly lower than the price as of the recommendation date.
Department of Health and Human Services in the form of recommendations on the use of vaccines and related agents for control of vaccine-preventable diseases in the U.S.
Asked to clarify it on Wednesday, the Minister told State House correspondents while briefing on the outcome of the Federal Exective Council (FEC) meeting that the president will study the recommendation and get back to the Tripartite Committee.
The finance minister also did not accept the Senate recommendation to withdraw 1% increase in customs duty rates.
ISLAMABAD -- Minister for Law and Justice Zahid Hamid informed the Senate that the government incorporated 75 recommendations out of 129 in the Finance Bill 2017-18 partially and fully suggested suggested by the senators.
The second strong recommendation was that patients who present with an initial or recurrent acute episode of sight-threatening uveitis should receive treatment with a high-dose glucocorticoid, infliximab, or interferon-alpha.
In the current trust model, recommendation service only provides a single trust value (obtained by the interaction with evaluating nodes).
It is still the most downloaded report ever produced by the IOM and almost every state has developed an action coalition to advance the recommendations from the report (you can see what is going on at http:// campaignforaction.org/).
It appreciated establishment of the Task Force to monitor implementation of LLRC recommendations. It made a recommendation.
Regarding sweets, the common recommendation is to minimize consumption.
Subsequently, based on stakeholder and public comment (as well as a review of 2 large recently published studies), the USPSTF gave an A recommendation to the use of HPV testing in conjunction with cervical cytology as an option for women ages 30 years and older who want to increase the interval between screening to 5 years.
The approach, called Grades of Recommendation Assessment, Development, and Evaluation (GRADE), has been adopted by the World Health Organization, the Cochrane Collaboration, and the Agency for Healthcare Research and Quality along with numerous professional organizations.
Although this presents a simple face to the user, it requires a lot of technologies and tuning under the lid, and there are significant differences between the way a good recommendation engine works in different circumstances.