She walks in beauty, like the night Of cloudless climes and starry skies; And all that's best of dark and bright Meet in her aspect and her eyes: Thus mellow'd to that tender light Which heaven to gaudy day denies.
The sky is changed,-and such a change! O night And storm and darkness! ye are wondrous strong, Yet lovely in your strength, as is the light Of a dark eye in woman! Far along, From peak to peak, the rattling crags among, Leaps the live thunder.
Lord Byron (1788 - 1824)
Source: Childe Harold's Pilgrimage, Canto iii. Stanza 92.