The life of a good book is far longer than the life of a man. Its author dies, and his generation dies, and his successors are born and die; the world he knew disappears, and new orders which he could not foresee are established on its ruins; law, religion, science, commerce, society, all are transformed into shapes which would astound him; but his book continues to live. Long after he and his epoch are dead, the book speaks with his voice.

— Gilbert Highet, on Juvenal