King James Version (KJV)
A fool hath no delight in understanding, but that his heart may discover itself.
Modern English
A fool takes no pleasure in understanding, but only in expressing his opinion.
Hebrew
לֹֽא יַחְפֹּ֣ץ כְּ֭סִיל בִּתְבוּנָ֑ה כִּ֥י אִם בְּ֝הִתְגַּלּ֗וֹת לִבּֽוֹ׃
loʾ yaḥpoṣ ksiyl bitbvnah kiy ʾim bhitgalvot libvo