First principles

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First, First aid, First to file and first to invent, First London, First Minister of Scotland, First Beeline, First Minister and Deputy First Minister of Northern Ireland, First baseman, First Boston, First West Yorkshire, First Worcester, First ladies of Nevada, First Act, FIRST Robotics Competition, First Student, First contact, First family, First woman, First degree, First aid kit, First Love, First Time, First impression, B2 First, First Fruits, First ladies of Pennsylvania, First ascent, First American, First Nations, First Light, Who's on First?, First lady, First Line, First person, First man or woman, Credit Suisse First Boston, First Horizon Bank, First Fleet, First Union, First of May, First Glasgow, First Cut, Kʼómoks First Nation, The First Noel, Stoney Nakoda First Nation, Deputy First Minister of Scotland, Singaporeans First, First Things First, FIRST Lego League Challenge, Ɂakisq̓nuk First Nation, First Things First (album), First National Pictures, First-person narrative, First Artists, First Ministers' conference, First-order, First Hampshire & Dorset, FIRST Tech Challenge, First-class cricket, List of first ladies of Minnesota, First ladies and gentlemen of Alaska, First Lady of the United States, First Minister of Wales, First-order logic, First ladies and gentlemen of North Carolina, First Step, First Kiss, First Nehru ministry, First-rate, First responder, First Lady of Ethiopia, First Album, First-person (video games), First Nations in Ontario, First ladies of Wisconsin, First Nations in Canada, First Presidency (LDS Church), First South West, First Republic of Korea, First and Last, First ladies and gentlemen of Guam, First strike, Dehcho First Nations, First Growth, First Data, First Lady of Venezuela, First Chicago Bank, Breadth-first search, First Scotland East, First grade, First Merchants Corporation, First-foot, First American Financial Corporation, First minister, Clovis First, First ladies and gentlemen of the Philippines, For the First Time, First West of England, First Lord of the Admiralty, Be First, First ladies and gentlemen of Oklahoma, First Nations in Alberta, First day of issue, First principle, First Hill, Seattle, First-hitting-time model, First sergeant, FirstGroup, Maxillary first premolar, People-first language, RSS First Step, First-wave feminism, Love at First Sight, FIRST Championship, First ladies and gentlemen of Mexico, First Internet Bank, First Lady of the Gambia, First Expired, First Out, First Blood, First Evil, First pass effect, Wizard's First Rule, Ceremonial first pitch, First Folio, First ladies of Maryland, First ladies of Hawaii, First lieutenant, America First, The First 48, First hand, Mitaanjigamiing First Nation, First World problem, Certified first responder, First class, First white child, First Things First (talk show), Beneteau First 14, First ladies and gentlemen of Gabon, First Church, Blast First, First Second Books, Sq'éwlets First Nation, First Lady of Brazil, First ladies of North Dakota, First Twenty Years, First Presidency, First-mover advantage, The First, Sipekne'katik First Nation, First Sea Lord, First Bus East of England