The shrewd conceal their knowledge, but the heart of fools proclaims their stupidity.
A prudent man concealeth knowledge: But the heart of fools proclaimeth foolishness.
A prudent man is reluctant to display his knowledge, but the heart of [self-confident] fools proclaims their folly. [Isa. 32:6.]
A prudent man concealeth knowledge; But the heart of fools proclaimeth foolishness.
A resourceful man conceals knowledge. And the heart of the unwise provokes foolishness.