After the tragedy of his family, Khả decided to abandon preparation for the priesthood and married. After his first wife died childless, Khả remarried and had twelve children with his second wife, Phạm Thị Thân (in a period of twenty-three years) of whom nine survived infancy – six sons and three daughters. These were Ngô Đình Khôi, Ngô Đình Thị Giao, Ngô Đình Thục, Ngô Đình Diệm, Ngô Đình Thị Hiệp, Ngô Đình Thị Hoàng, Ngô Đình Nhu, Ngô Đình Cẩn and Ngô Đình Luyện. As a devout Roman Catholic, Khả took his entire family to Mass each morning and encouraged his sons to study for the priesthood. Having learned both Latin and classical Chinese, Khả strove to make sure his children were well educated in both Christian scriptures and Confucian classics. During his childhood, Diệm laboured in the family's rice fields while studying at a French Catholic primary school (Pellerin School) in Huế, and later entered a private school started by his father, where he studied French, Latin, and classical Chinese. At the age of fifteen he briefly followed his elder brother, Ngô Đình Thục, who would become Vietnam's highest-ranking Catholic bishop, into seminary. Diệm swore himself to celibacy to prove his devotion to his faith, but found monastic life too rigorous and decided not to pursue a clerical career. According to Moyar, Diệm's personality was too independent to adhere to the discipline of the Church, while Jarvis recalls Ngô Đình Thục's ironic observation that the Church was "too worldly" for Diệm. Diệm also inherited his father's antagonism toward the French colonialists who occupied his country.