There is an abecedarian ignorance that comes before knowledge, and another doctoral ignorance that comes after knowledge: an ignorance that knowledge creates and engenders, just as it undoes and destroys the first.
~ Montaigne, Essays I, 54
If ignorance is always our essential condition, some forms of it are only achieved by long study. Today I congratulate my baby brother who this past weekend was awarded his PhD and so has quite literally graduated into that doctoral ignorance which is the crown of worldly knowledge. May it rest lightly on his head and be for him a blessed second childhood full of fresh wonder and curiosity.