the sweat of (one's) brow

the sweat of (one's) brow

One's own personal efforts or hard work. It's due to the sweat of my father's brow that a barren, fallow little plot of land was transformed into the flourishing farm you see today. This pair of entrepreneurs has created a billion-dollar company by the sweat of their brows.
See also: brow, of, sweat
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