Between two worlds Life hovers like a star,
'Twixt Night and Morn, upon the horizon's verge.
How little do we know that which we are!
How less what we may be![766] The eternal surge
Of Time and Tide rolls on and bears afar
Our bubbles; as the old burst, new emerge,
Lashed from the foam of ages; while the graves
Of Empires heave but like some passing waves.[767]