Aeschylus 
The House of Atreus 

I pray the gods to quit me of my toils, To close the watch I keep, this livelong year;For as a watch-dog lying, not at rest, Propped on one arm, upon the palace-roof Of Atreus’ race, too long, too well I know The starry conclave of the midnight sky, Too well, the splendours of the firmament, The lords of light, whose kingly aspect shows—What time they set or climb the sky in turn—The year’s divisions, bringing frost or fire.