Т-37

ЗАРЫВАТЬ/ЗАРЫТЬ ТАЛАНТ (В ЗЕМЛЮ) VP subj: human to leave one's abilities undeveloped or underdeveloped, not make use of one's talent

X зарыл свой талант = X wasted his talent(s) (abilities)

X let his talent(s) (abilities) go to waste.

From the Biblical parable about a man who buried his money («талант») in the earth, rather than put it to good use (Matt. 25: 14-30). «Талант» (from the Greek talanton) was a unit of money in ancient Greece, Palestine, etc.