deffir n yisufiyen-agi llant-d snat n teẓriwin : tin n Platon deg 428-347 uqbel talalit n sidna ɛisa, akked tin n Sokrate deg 436-338 uqbel talalit n sidna ɛisa. Platon yesselmad tifelseft, yettawi-d ɣef tesnukyest n yisufiyen s tidet, ma d  Sokrate  yelmed ɣer yisufiyen, d aselmad n usekyes s wazal-is, mucaɛ deg tallit-nni n rregrig d rum, ma d Aristote d anelmad n Platon maca abrid-is ixulef win n uselmad-is, yeǧǧad sin n yidlisen i d-yewwin ɣef tẓuri-agi  rhtorique, potique .