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How is the Latin phrase pluralitas non est ponenda sine necessitate translated into English?
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William of Ockham
English theologian and philosopher William of Ockham, detail from a stained-glass window, c. 1985; in All Saints' Church, Ockham, Surrey, England.
The Latin phrase pluralitas non est ponenda sine necessitate, associated with the Scholastic philosopher William of Ockham, is translated into English as "plurality should not be posited without necessity."1
This principle, widely known as Occam’s razor, is also frequently expressed as "Entities are not to be multiplied beyond necessity." It serves as a foundational rule of parsimony, suggesting that when faced with competing theories, the simplest explanation is generally preferred.1