That he is a fool. — In Hebrew, as in English, the antecedent of “he” may be taken differently, and so the Vulg. and other authorities understand the verse as meaning that the fool in his self-conceit attributes folly to everyone else. But it is better, as well as more obvious, to take the verse of the self-betrayal of the fool (Proverbs 13:16; Proverbs 17:28; Proverbs 18:2).
Related Commentaries of Ecclesiastes 10:3
Ecclesiastes 10:3
3 Yea also, when he that is a fool walketh by the way, his wisdom faileth him, and he saith to every one that he is a fool.