“Examine from time to time what are the dominant passions of your soul, and having ascertained this, mold your life, so that in thought, word, and deed you may as far as possible counteract them. For instance, if you know that you are disposed to be vain, reflect often upon the emptiness of this earthly life, call to mind how burdensome all mere earthly vanities will be to the conscience at the hour of death, how unworthy of a generous heart, how puerile and childish, and the like.”