διασείειν οὐρᾷ

From LSJ

Ζῆν οὐκ ἄξιος, ὅτῳ μηδὲ εἷς ἐστι χρηστὸς φίλοςLife is not worth living if you do not have at least one friend.

Democritus, DK 68b22

Greek > English (Woodhouse)

wag the tail