**First Principle**

**In mathematics**, first principles are referred to as axioms or postulates. GĂ¶del's incompleteness theorems have been taken to prove, among other things, that no system of axioms that describe the set of natural numbers can prove its own validity - nor perhaps can it prove every truth about the natural numbers.

**In philosophy**, a **first principle** is a basic, foundational proposition or assumption that cannot be deduced from any other proposition or assumption.

Read more about First Principle: First Principles in Formal Logic, Aristotle's Contribution, Descartes, In Physics

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### Famous quotes containing the word principle:

“I ... observed the great beauty of American government to be, that the simple machines of representation, carried through all its parts, gives facility for a being moulded at will to fit with the knowledge of the age; that thus, although it should be imperfect in any or all of its parts, it bears within it a perfect *principle* the *principle* of improvement.

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—Frances Wright (1795–1852)