HELLO TO EVERYBODY! I NEED YOUR HELP! I AM FROM MOSCOW AND I START THIS SUBJECT BECAUSE I AM WRITING A DIPLOMA NOW. I NEED AS MANY IDIOMS WITH EXPLANATIONS ON THE FIELDS OF VICTORY AND DEFEAT AS POSSIBLE. PLEASE IF YOU KNOW ANY OR KNOW WHERE TO FIND THEM, I WILL BE HAPPY TO RECEIVE YOUR HELP! THANKS LOTS!
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Here's one site: victory - Idioms - by the Free Dictionary, Thesaurus and Encyclopedia.
There's is no dishonour in honourable defeat [a paraphrase of "All is lost but honour"]
We learn little from victory, much from defeat