Yet 'tis of little consequence,
To-day, to know how thou wert made, or whence
Earthquake and flood have brought thee: thou art here,
At once the master that men love and fear—
Whom they have sought by many strange devices,
In ancient river-beds; in interstices
Of hardest quartz; upon the wave-wet strand,
Where curls the tawny sand
By mountain torrents hurried to the main,
And thence hurled back again:—