So’

“Ave atque vale... Hail and farewell. He had never given much thought to the words before, he had never thought about why they were not just a farewell but also a greeting. Every meeting led to a parting, and so it would, as long as it was mortal. In every meeting there was some of the sorrow of parting, but in every parting there was some joy of the meeting as well.
He would not forget the joy.”
― Cassandra Clare, The Infernal Devices: Clockwork Princess