Summa Theologica Complete in a Single Volume

This theological compendium by Thomas Aquinas serves as a foundational text in Roman Catholicism, encapsulating the entirety of known doctrine regarding God and humanity's relationship with the divine. It is renowned for presenting five distinct proofs of God's existence, which include three cosmological arguments, a moral argument, and a teleological argument. Written between 1265 and 1273, it represents a significant milestone in the history of theology, influencing both religious thought and philosophical discourse.