The International Council of Universities of Saint Thomas Aquinas (ICUSTA) is a group of universities and colleges around the world that are all dedicated to studying and teaching the thought of Saint Thomas Aquinas. Saint Thomas Aquinas was a philosopher and theologian who is known for his teachings about faith and morality. ICUSTA universities and colleges believe in the same teachings, and so they come together to share knowledge, research, and ideas about him and his teachings. They help each other learn about and understand his writings even better.