worth one's salt
From the Roman practice of paying wages in the form of bags of salt.
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- (idiomatic) Competent or adept, especially at one's occupation.
- Any doctor worth his salt should be able to correctly diagnose the illness.
- 12 December 2018, Charles Bramesco, AV Club A spoonful of nostalgia helps the calculated Mary Poppins Returns go down
- She does the same thing as any parent worth their salt, and gets rambunctious youngsters engaged in daily drudgeries by refashioning the quotidian as adventure.
competent or adept