Yrd.Doç.Dr.Alparslan AÇIKGENÇ

Ortadoğu Teknik Üniversitesi Felsefe Bölümü Öğretim Üyesi
 

That substance endures every change is an idea which persisted in philosophy for a long time since Aristotle. This idea is based on the assumption that there must be something which endures throughout every change; for otherwise the thing which undergoes change could not remain as itself. Something in the changing subject must remain the same throughout all change so that it keeps its self-identity.