Proverbs 15:32

New English Translation

³²The one who refuses correction despises himself,^[a]
but whoever listens to^[b] reproof acquires understanding.^[c]

Proverbs 15:32 sn To “despise oneself” means to reject oneself as if there was little value. The one who ignores discipline is not interested in improving himself.
Proverbs 15:32 tn The nuances of שָׁמַע (shamaʿ) include hearing and obeying or carrying out what was said. Cf. “heeds” so NAB, NIV, NKJV, NRSV.
Proverbs 15:32 tn The term לֵב (lev, “mind, heart”) is used as a metonymy of association for what one does with the mind (thinking), and so refers to discernment, wisdom, good sense.

New English Translation (NET)