Five-minute digest

Proslogion

Summary

The Proslogion is a short Latin work in twenty-six chapters, written by Anselm at the abbey of Bec in 1077 and 1078. In the preface Anselm explains that after writing the Monologion, a long chain of arguments about God, he looked for a single argument that would by itself prove that God exists and is the supreme good. He first called the book Faith Seeking Understanding. The work is written as a prayer addressed to God. Chapter 1 is a moving meditation in which Anselm asks God to teach him to seek and to show himself, and says that he does not seek to understand in order to believe, but believes in order to understand. Chapters 2 to 4 contain the famous argument later called the ontological argument. God is a being than which nothing greater can be conceived. Even the fool of the Psalms, who says in his heart there is no God, understands this idea, so it exists in his understanding. But a being that existed in reality as well as in the mind would be greater than one that existed only in the mind; therefore the being than which nothing greater can be conceived must exist in reality. Indeed, God cannot even be conceived not to exist. The remaining chapters explore what follows: that God is everything it is better to be than not to be, just, merciful, all-powerful, unchanging and eternal, and greater than can be conceived. The book ends with a meditation on the joy of heaven. A monk named Gaunilo soon replied with a defence of the fool, arguing that the same reasoning could prove the existence of a perfect island; Anselm answered him. The argument has been debated ever since, rejected by Thomas Aquinas and Kant and defended in various forms by Descartes, Leibniz and modern philosophers.

Top Lessons

  • Faith seeking understanding

    Anselm starts from belief and uses reason to understand it more deeply. The book shows that prayer and rigorous argument can go together.

  • How the argument works

    From the idea of a greatest conceivable being, Anselm argues that such a being must exist, since existing in reality is greater than existing only in thought. Following each step carefully is a training in logic.

  • Critics and replies

    Gaunilo, Aquinas and Kant raised objections that philosophers still discuss. Studying the debate teaches how to test an argument and answer objections fairly.

  • For the Christian reader

    The Proslogion is written as prayer as well as proof. Anselm begins by asking God for help and ends with longing for the joy of heaven. Read it with Psalm 14:1 and Psalm 27:8.

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