Ɣef waya i d-yenna Thomas.J : « Ɣef waya i ibennu yal amdan asugen-is ufrid akked tirga-is, d wumyiten-is s usemres n yiferdisen n tmedyazt am uzamul, ilugan (logique), iferdisen n tesnilest am yimyagen, ismawen, inamalen, d wayen akk i t-id-yemmalen, daya i yettalen ɣef lebni n umaḍal asugnan iǧahden ».5