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Use "unselfishness" in a sentence
"Equally characteristic of Julie's moral courage and unselfishness is the incident of how Madam Liberality suffered the doctor's assistant to extract the tooth fang whch had been accidentally left in her jaw, because her mother's "fixed scale of reward was sixpence for a tooth without fangs, and a shilling for one with them," and she wanted the larger sum to spend on Christmas-tree presents."
"Those, indeed, who came often to her house were accustomed to speak warmly of her "unselfishness" -- by which they meant the easy patience with which she could listen, smile, and flatter."
"Besides her unselfishness, which is to me the highest as it is the rarest of virtues, hers is a sweet and noble character, and she is one of the gentlest souls that I have ever known."