зерно истины(A core accuracy at the heart of a claim or narrative which also contains dubious or fictitious elements. There may be a kernel of truth in the story of how George Washington confessed to his father that he chopped down the cherry tree. WT. A singular element of truth or wisdom within a greater story, narrative, speech, or claim, especially when most or all other elements are fictitious or of questionable veracity. I think the governor's speech is a bunch of hogwash by and large, but there is a kernel of truth in what he said about the need for lower taxes. thefreedictionary.comAlexander Demidov)
доля истины(kernel of truth/wisdom/etc, phrase: a very small part of something that is true, wise etc. MED. Behind most food and nutrition myths, there's a kernel of truth. ESD Alexander Demidov)
