She was separated from all her party, and away from all her acquaintance; one mortification succeeded another, and from the whole she deduced this useful lesson, that to go previously engaged to a ball does not necessarily increase either the dignity or enjoyment of a young lady.
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She trusts only what she can measure or can deduce from measurement.
Now let us consider the situation and see what may be deduced from it.
Arthur Conan Doyle -- The Adventures of Sherlock Holmes