Descartes turned philosophy on its head and started again. First, he had to find out what he knew for certain. he did this by doubting everything. Could he believe what he saw with his eyes, when big things looked small in the distance? How did he know that he really existed? May be he was dreaming. […]

Thomas Aquinas was the son of an Italian nobleman. He was educated in a monastery, like many children during Middle Ages. This 13th century friar said that faith and reason were often two paths to the same end.  He combined the philosophy of Aristotle with the Christian religion. He argued that without God there would be […]