Ibisobanuro ahagana hasi ku ipaji
a Birashishikaje kuba Bibiliya ivuga ko isi ari uruziga, cyangwa nk’uko ijambo ry’igiheburayo ryakoreshejwe aho ribyumvikanisha, ikaba ari umubumbe. Aristote n’abandi Bagiriki ba kera bavugaga ko isi ari umubumbe, ariko icyo kibazo cyagiye kigibwaho impaka mu myaka ibarirwa mu bihumbi yakurikiyeho.