C. F. Keil and Franz Delitzsch on Proverbs 26:12

Pro 26:12 12 Seest thou a man who is wise in his own eyes?      The fool hath more hope than he.

Regarding the perf. hypotheticum ראית, vid., at Pro 22:29. Line second is repeated, Pro 29:20, unchanged. ממּנּוּ, prae eo, is equivalent to the Mishnic יותר ממּנּוּ, plus quam ei. As the conversion of a sinner, who does not regard himself as righteous, is more to be expected than that of a self-righteous man (Mat 9:12.), so the putting right of a fool, who is conscious that he is not wise (cf. Pro 24:7), is more likely to be effected than that of one deeming himself wise; for the greatest hindrance to any turning toward that which is better lies in the delusion that he does not need it.The Targum has 12b after Codd. פּקח סכלא טב מגּיהּ (= Syr. pekach, expedit, convenit, melius est), it is far better circumstanced regarding the fool than regarding him. Vid., Geiger’s Zeitschr. vi. (1868), p. 154.

Thus far the group of proverbs regarding fools.