Related Terms
Elementary assumption, concept, doctrine, maxim, or proposition generally held to be fundamental or true for a body of knowledge, conduct, procedure, or system of reasoning, and used as a basis for prediction and action. See also principles.

Use 'principle' in a Sentence

The unalienable rights of life, liberty, and the pursuit of happiness enshrined in the Declaration of Independence rest on the important principle that all people are created equal.
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The store I usually shop at cheated me out of 25 cents, and although that's not a lot of money, I must have it corrected over principle alone.
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Many philosophers have created imaginary, hypothetical societies based on what those philosophers consider to be the ideal principles necessary for a good society.
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Notable Quotable

Apple says: Plus It!
"The folks at Apple have a mantra: "Plus it!" This is the idea that you don't settle for "good enough", but that you keep finding ways to make things better, because if you don't, your competition will. If you've ever used Apple products, you've seen the principle at work. Each generation of a product is better than the last."
- Tom Murcko
Civilized Nations and Money
"Money, not morality, is the principle commerce of civilized nations."
- Thomas Jefferson