Folly

Proverbs 15:21 Folly is joy to him that is destitute of wisdom: but a man of understanding walks uprightly. 

‘Folly’ [Hebrew: cikluwth], silliness. Translated folly (Eccl. 1:17; 2:3, 12-13; 10:1) and foolishness (Eccl. 7:25; 10:13).

‘Folly is joy to him that is destitute of wisdom: but a man of understanding walks uprightly.’ Folly is a joy to fools, but wise men walk sensibly.

The simple are born with a disposition to folly, but the wise embrace knowledge. The wisdom of the prudent is to direct his way rightly, but the folly of fools is to live deceitful lives (14:8,18). The crown of the wise is their riches, but the fool produces folly by his acts of foolishness (14:24).

Three discoveries of Solomon (Eccl. 2:13-17): There is no supreme good or lasting happiness in all the pursuits of science, no genuine satisfaction in unbridled lusts, and no true joy in folly; wisdom excels folly as much as light excels darkness. The wise man sees clearly and weighs carefully the consequences of all he does; whereas the fool has no guide to his reason and no check on his passions as he blindly walks, groping in unbridled lusts. Both the wise man and the fool die, but the wise man isn’t remembered any more than a fool.