Percy Bysshe Shelley
Good Night! ah! no; the hour is ill that severs those it should unite
Good-night? ah! no; the hour is ill
Which severs those it should unite;
Let us remain together still
Then it will be good night

How can I call the lone night good
Though thy sweet wishes wing its flight?
Be it not said, thought, understood --
Then it will be -- good night

To hearts which near each other move
From evening close to morning light
The night is good; because, my love
They never say good-night