AQUINAS
Aquinas as a young professor at the Sorbonne in Medieval Paris wrote this "text book" to be used by student of Philosophy, Theology, Law...Because a small error at the very beginning of every research could become a "tragedy" at the end of the search. Medieval students in Paris, also at Rome, Bolonnia, Oxford, Salamanca wanted to understand what is to be...and why there is being more than non-being in existence. They received from Aristotle, Plato, Arabs and Jewish philosophers the tools to understand the Revelation being brought in the Bible (Sacred Scriptures).