Wisdom acquisition is a moral duty. It’s not something you do just to advance in life. As a corollary to that proposition, which is very important, it means that you are hooked for lifetime learning.
Charlie Munger was asked to explain in one word the reason for his success, his response “rational”.
Rational is the opposite of impulsive. A weak mind is an impulsive mind and the only way to control it is by cultivating your intellect.