St. Alphonsus Liguori is a doctor of the Church who is widely known for his contribution to moral theology and his great kindness. His father was Don Joseph de' Liguori, a naval officer and Captain of the Royal Galleys, and his mother came from Spanish descent. St. Alphonsus did not attend school; rather, he was taught by tutors at home where his father kept a watchful eye. St. Alphonsus would often take his spectacles off, which aided his myopic eyes, in order to merely listen. He was a great moral theologian and his famous book, “Moral Theology”, was published in 1748.