You should never have to say hello or goodbye. Even at work sometimes, and I know this is very unpopular, is that if I'm going to work every single day, I don't think you should have to hug people hello every single day when you come to work. I saw you Monday!
Nothing is more beautiful than the loveliness of the woods before sunrise.
We have all had the experience of finding that our reactions and perhaps even our deeds have denied beliefs we thought were ours.