Tussna n tmetti d aric seg tussniwin n umdan (siences humaines), (tudert n umdan, tafekka-s, tigzi-is, idles-is, tamussni-is tgr), tella-d i usegzi n wayen i d-yettnulfun deg tmetti, ama deg wayen yenan tiktiwin, ama d allalen yesseqdac umdan akken ad tent-id-yessuffeer unnar, d wamek yettidir idlesines deg tmetti.