Categories Thought Avicenna Post author By Redactor Post date December 31, 2020 No Comments on Avicenna The knowledge of anything, since all things have causes, is not acquired or complete unless it is known by its causes.Avicenna, On Medicine. ← Bricked Windows → Totalitarians Gloat Leave a Reply Cancel replyYour email address will not be published. Required fields are marked *Comment * Name * Email * Website + one = 5