The heart is not so constituted, and the only way to dispossess it of an old affection is by the expulsive power of a new one
No other job in the world could possibly dispossess one so completely as this job of teaching. You could stand all day in a laundry, for instance, still in possession of your mind. But this teaching utterly obliterates you. It cuts right into your being: essentially, it takes over your spirit. It drags it out from where it would hide.