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Principia
"Principia" in a Sentence (3 examples)
Russell is not the only author of Principia Mathematica.
1776, Thomas Pownall, in a letter to the economist Adam Smith I do really think, that your book […] might become an institute, containing the principia of those laws of motion, by which the system of the human community is framed and doth act […]
They were her principia, her rudiments; the elementary atoms; the little steps by which she pressed forward to perfection.
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Unscramble this word: principia