Science
- Principal Investigator, a lead scientist or engineer for a project
- Principal value, a value along a chosen branch of a multivalued function
- Principal branch, a special selected branch of a multivalued function
- Principal ideal, an ideal with a single generator, and the related concept of principal ideal domains
- Cauchy principal value, a way of assigning a finite value to improper integrals that seem to diverge
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Famous quotes containing the word science:
“The method of political science ... is the interpretation of life; its instrument is insight, a nice understanding of subtle, unformulated conditions.”
—Woodrow Wilson (1856–1924)
“Man lives for science as well as bread.”
—William James (1842–1910)
“He is not a true man of science who does not bring some sympathy to his studies, and expect to learn something by behavior as well as by application. It is childish to rest in the discovery of mere coincidences, or of partial and extraneous laws. The study of geometry is a petty and idle exercise of the mind, if it is applied to no larger system than the starry one.”
—Henry David Thoreau (1817–1862)