NET
3 A stone is heavy and sand is weighty, but vexation by a fool is more burdensome than the two of them.
Darby
3 A stone is heavy, and the sand weighty; but a fool's vexation is heavier than them both.
KJV
3 A stone [is] heavy, and the sand weighty; but a fool's wrath [is] heavier than them both.