Proverbs 14 10
The individual's mind alone knows its sadnesses, and no one else can share its happiness.
Compare with other 3 random translations
KJV Proverbs 14:10The heart knoweth his own bitterness; and a stranger doth not intermeddle with his joy.
ASV Proverbs 14:10The heart knoweth its own bitterness; And a stranger doth not intermeddle with its joy.
AMP Proverbs 14:10The heart knows its own bitterness, and no stranger shares its joy.