Self study

Useless to possess an obedient mind unless one profits to the furthest possible degree by its obedience. A prolonged primary course of study is indicated. Now as to what this course of study should be there cannot be any question; there never has been any question. All the sensible people of all ages are agreed upon it. And it is not literature, nor is it any other art, nor is it history, nor is it any science. It is the study of one’s self. man, know thyself.

~ Arnold Bennett