The gray half-tones of daybreak are not the gray half-tones of the day's close, though the degree of their shade may be the same. In the twilight of … - Thomas Hardy

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The gray half-tones of daybreak are not the gray half-tones of the day's close, though the degree of their shade may be the same. In the twilight of the morning, light seems active, darkness passive; in the twilight of evening it is the darkness which is active and crescent, and the light which is the drowsy reverse.