We are all porters; we open doors for others Sometimes we open them for ourselves If we close a door, it is against the rain and cold And not against each other
(Yes, in Macbeth the Porter is drunk and inept, and when he says “remember the porter” he is asking for a tip in spite of his incompetence. I put the line in anyway because porters, actual or metaphorical, are servants, as are we all.)