The most excellent and divine counsel, the best and most profitable advertisement of all others, but the least practiced, is to study and learn how to know ourselves. This is the foundation of wisdom and the highway to whatever is good. – Pierre Charron
Focus on the mind and the soul. Read. Study. Enrol in a course of lectures. Pray. Become a member of a religious congregation. Study the Bible or other ancient works of wisdom. – Jonathan Sacks