Only be very careful to observe the commandment and the law that Moses the servant of YHWH commanded you, to love YHWH your God, and to walk in all his ways and to keep his commandments and to cling to him and to serve him with all your heart and with all your soul.
Joshua 22:5

Education progresses upward, starting with the simplest lessons, progressing to the complex, without discarding what we learned at the beginning. Wisdom comes from internalizing new experiences and lessons without abandoning the first.