BCE, which gives advice to the ordinary man; “The Satire of the Trades” by Khety; and the text of Amennakht (active in 1170–1140 BCE) from Deir El-Medina, whose teaching states that “it is good to finish school, better than the smell of lotus blossoms in summer.” Ancient Egyptian philosophers also made important contributions to Hellenistic philosophy and Christian philosophy. According to Busiris by the ancient Greek philosopher Isocrates, the senior of Plato, “all men agree the Egyptians are the healthiest and most long of life among men; and then for the soul they introduced philosophy’s training…” In the Hellenistic tradition, the influential philosophical school of Neoplatonism was founded by the Egyptian philosopher Plotinus in the third century CE. The Church Father and philosopher Augustin of Hippo (born in Thagaste, today's Algeria, in 354) had a Christian mother, Saint Monnika, who was an Amazigh (Berber), and Augustin defined himself as an African (or Punic, of Phoenician descent). West Africa The most prominent of West Africa's pre-modern philosophical traditions has been identified as that of the Yoruba philosophical tradition and the distinctive worldview that emerged from it over the thousands of years of its development. Philosophical concepts such as Omoluabi, Ashè and Emi Omo Eso were integral to this system, and the totality of its elements are contained in what is known amongst the Yoruba as the Itan. The cosmologies and philosophies of the Akan, Dogon, Serer and Dahomey were also significant. In pre-colonial Senegambia (modern Gambia and Senegal), the 17th-century philosopher Kocc Barma Fall (b. 1586) stood out as one of the renowned philosophers in Senegambian history. His proverbs are still recited by Senegalese and Gambians alike, including in Senegambian popular culture - for example in Ousmane Sembene's films such as Guelwaar Other notable philosophical thinkers include the Gambian historian Alieu Ebrima Cham Joof, and the Malian ethnologist Amadou Hampâté Bâ. One of the foremost scholars of Timbuktu was Ahmed Baba (1556–1627), who argued against what he called "racial slavery". One of the leading women philosophers and writers of the Sokoto Caliphate, in present-day Nigeria, was the princess Nana Asma'u (1793-1864). Horn of Africa In the Horn of Africa, there are a number of sources documenting the development of a distinct Ethiopian philosophy from the first millennium onwards. Among the most notable examples from this tradition emerge from the work of the 17th-century philosopher Zera Yacob, and that of his disciple