John Trapp on Proverbs 26:12

Verſ. 12. Seeſt thou a man wiſe in his own conceit?] This fooliſh wiſe-man, or wiſe fooliſh-man (for whether of the two to call him I know not, as the Chronicler ſaith of Sir Thomas Moore) is that Dog ſpoken of in the former verſe; that fore-thinks not the evil that followeth upon his returning to his filthy vomit; which being made much worſe by the heat of the Sun and open air, maketh him much more ſick than before he had been. Semblably, the witleſſe wicked man, inſenſible of the evil of his way, and highly conceited thereof, goes boldly on till there be neither hope of better, nor place of worſe. See the Note on chap. 3.7. and my common-place of Arrogance.