Don Juan 04-057
Canto the Fourth

 LVII

Her daughter, temper'd with a milder ray,
 Like summer clouds all silvery, smooth, and fair,
Till slowly charged with thunder they display
 Terror to earth, and tempest to the air,
Had held till now her soft and milky way;
 But overwrought with passion and despair,
The fire burst forth from her Numidian veins,
Even as the Simoom sweeps the blasted plains.

George Gordon Byron, Lord Byron (1788-1824) 
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