“Mathematics, natural science, laws, arts, even morality, etc. do not completely fill the soul; there is always a space left over reserved for pure and speculative reason, the emptiness of which prompts us to seek in vagaries, buffooneries, and mysticism for what seems to be employment and entertainment, but what actually is mere pastime undertaken in order to deaden the troublesome voice of reason, which, in accordance with its nature, requires something that can satisfy it and does not merely subserve other ends or the interests of our inclinations.”
Aurelius Augustinus - more commonly "St. Augustine of Hippo," or simply "Augustine" - was a philosopher and theologian, and one of the most important figures in the development of Western Christianity. He framed the concepts of original sin and just war. Augustine was one of the most prolific Latin authors in terms of surviving works, and the list of his works consists of more than a hundred separate titles.
Augustine took the view that the Biblical text should not be interpreted literally if it contradicts what we know from science and our God-given reason. Many Protestants, especially Calvinists, consider him to be one of the theological fathers of Reformation teaching on salvation and divine grace.