Heb. zadon, “insolence,” “presumptuousness.” The contrast here is between the one who is too proud to take advice and who feel insulted if anyone suggests that he needs it, and the wise man who listens to the advice of men of experience. Not only does the proud man quarrel with those who would instruct him, but he gets into other disputes of various kinds as a result of following his own ill-advised ways (see chs. 11:2; 12:15).