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'Perhaps to her grey thoughtful eyes revealed an arch gaiety sometimes; but this was infrequent; the sort of wisdom which looked from their pupils did not readily keep company with these lighter moods. Like all people who have known rough times, lightheartedness seemed to her too irrational and inconsequent to be indulged in except as a reckless dram now and then; for she had been too early habituated to anxious reasoning to drop the habit suddenly. She felt none of those ups and downs of spirit which beset so many people without cause; never - to paraphrase a recent poet - never a gloom in Elizabeth-Jane's soul but she well knew how it came there; and her present cheerfulness was fairly proportionate to her solid guarantees of the same.'
Description of Elizabeth-Jane from The Mayor of Casterbridge by Thomas Hardy.