Nil satis nisi optimum ("Nothing but the best is good enough") is a Latin phrase which has been used as the motto of the following:

967 Squadron of the Air Training Corps Everton FC Carlton le Willows Academy Clifton Hunter High School Escondido Charter High School John D. O'Bryant School of Mathematics & Science Loughborough University Okehampton College Proviso East High School Rutlish School St Francis of Assisi Catholic College Strathcona-Tweedsmuir School Westerford High School

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