Antonin-Gilbert Sertillanges was a French philosopher and theologian born on November 16, 1863, and passed away on July 26, 1948. He is known for his studies on Saint Thomas Aquinas and was a member of the Order of Saint Dominic (Dominican Order or Order of Preachers), having joined in the year 1883. In addition to being a professor of Ethics at the Catholic Institute of Paris (1900 and 1922), he also taught Social Ethics at the Dominican Convent of Le Saulchoir (1923).