This book compiles the pastoral and intellectual legacy of Pope Leo XIV during his time as Grand Chancellor of the University of Santo Tomás (USAT) and Bishop of Chiclayo. Through speeches, homilies, and writings, his profound Augustinian spirituality and his vision of an education that integrates faith, science, and culture are revealed. This volume highlights his commitment to the integral formation of young people, academic excellence, and university social responsibility. It is an essential work to understand the heart of a pastor who walked with his people and whose episcopate was marked by listening, service, and the tireless search for truth. It includes an extensive photographic gallery that testifies to its closeness and dedication of the university community.