ผู้เขียน: Francis De Sales

St. Francis de Sales (1567–1622) was the Bishop of Geneva and a renowned spiritual director. Preaching during the Counter-Reformation, he is estimated to have converted 70, 000 Calvinists in his short lifetime. He was a fervent proponent of the universal call to holiness and spent much of his time guiding lay people on the road to sanctity. Declared a Doctor of the Church by Pope Pius IX in 1877, St. Francis is still helping to form saints through his many writings, of which Introduction to the Devout Life is the most famous.