The core virtue is humility. If I know myself, I am humble. If I don’t, I am ignorant; I will hold false ideas about myself. At the extremes, I will either be under-inflated and suicidal or over-inflated and megalomaniacal. Humility, self-knowing, is wisdom. Wisdom is our depth dimension. If I do not know myself, I am disabled. I cannot love. If I know the world without knowing myself, I am a technician. Life, then, is a calculation. This is where we are today. Our knowledge of the world has vastly outstripped our knowledge of ourselves. No man who knows himself could ever build a bomb. Or pretend to lead a country.