Proverbs 4:7 (KJV):1

Wisdom is the principal thing; therefore get wisdom: and with all thy getting get understanding.

Abraham Cohen (trans.), Proverbs: Hebrew Text, English Translation and Commentary, Soncino Books of the Bible, Soncino Press, 1945

Rashi’s commentary on Proverbs, Chapter 4, Verse 7:

The beginning of wisdom [is to] acquire wisdom At the beginning of your wisdom, learn from others and acquire for yourself the tradition from the mouth of the teacher, and afterwards with all your possession acquire understanding. Concentrate on it by yourself to understand the reasons, thereby deriving one thing from another. 2 3

ראשית חכמה קנה חכמה. תחלת חכמתך למוד מאחרים קנה לך שמועה מפי הרב, ואח"כ בכל קנינך קנה בינה, תתבונן בה מעצמך להשכיל הטעמים דבר מתוך דבר: