Proverbs 12:23-25

A shrewd man is reluctant to display his knowledge [until the proper time], But the heart of [over-confident] fools proclaims foolishness. [Is 32:6] The hand of the diligent will rule, But the negligent and lazy will be put to forced labor. Anxiety in a man’s heart weighs it down, But a good (encouraging) word makes it glad. [Ps 50:4; Prov 15:13]