First, my son, you must fear God, because in fearing Him lies wisdom, and if you are wise, you cannot err in anything. Second, you must look at who you are and make an effort to know yourself, which is the most difficult knowledge one can imagine. When you know yourself, you will not puff yourself up like the frog who wanted to be the equal of the ox,5 and if you can do this, the fact that you kept pigs at home will be like the ugly feet beneath the peacock’s tail of your foolishness.”