The École normale supérieure – PSL is a grande école in Paris, France. It is one of the constituent members of Paris Sciences et Lettres University (PSL). Due to its selectivity, historical role, and influence within French society, the ENS is generally considered the most prestigious of the grandes écoles, as well as one of the most prestigious higher education institutions in France. Its pupils are generally referred to as normaliens, while its alumni are sometimes referred to as archicubes.