Commentary offered in explanation for why a gifted individual who may be head and shoulders above the norm is brought down to size by the members of his or her group. Quite literally, the stake that sticks out above the other stakes in a row is brought into line by being pounded down.
A: Takahashi wa atarashii kaisha ni uttsuta kedo umaku ikanai rashii na.
B: Aitsu, atama ga yosugiru n da. “Deru kui wa utareru” tte yuu daro. Sore ga tamaranai n janai ka, aitsu no koto da kara.
A: You know Takahashi, he moved to a new company, but he isn’t getting along too well, I hear.
B: He’s too brilliant. “Excellence is shot down by mediocrity,” you know. He probably can’t stand it, knowing him.