Apply thine heart unto instruction, and thine ears to the words of knowledge.
Proverbs 23:12
King James Version (public domain)
Traditionally attributed to Solomon · c. 10th century BC · King of Israel, renowned for wisdom
Context
10Remove not the old landmark; and enter not into the fields of the fatherless:
11For their redeemer is mighty; he shall plead their cause with thee.
12Apply thine heart unto instruction, and thine ears to the words of knowledge.
13Withhold not correction from the child: for if thou beatest him with the rod, he shall not die.
14Thou shalt beat him with the rod, and shalt deliver his soul from hell.