Medieval philosophyMedieval philosophy is the philosophy that existed through the Middle Ages, the period roughly extending from the fall of the Western Roman Empire in the 5th century until after the Renaissance in the 13th and 14th centuries. Medieval philosophy, understood as a project of independent philosophical inquiry, began in Baghdad, in the middle of the 8th century, and in France, in the itinerant court of Charlemagne, in the last quarter of the 8th century.
ProslogionThe Proslogion (Proslogium) is a prayer (or meditation), written by the medieval cleric Saint Anselm of Canterbury in 1077–1078, serving to reflect on the attributes of God in order to explain how God can possess seemingly contradictory qualities. This meditation is considered to be the first-known philosophical formulation that sets out the ontological argument for the existence of God. The original title for this discourse was to be Faith Seeking Understanding.
Existence precedes essenceThe proposition that existence precedes essence (l'existence précède l'essence) is a central claim of existentialism, which reverses the traditional philosophical view that the essence (the nature) of a thing is more fundamental and immutable than its existence (the mere fact of its being). To existentialists, human beings—through their consciousness—create their own values and determine a meaning for their life because the human being does not possess any inherent identity or value.
Gödel's ontological proofGödel's ontological proof is a formal argument by the mathematician Kurt Gödel (1906–1978) for the existence of God. The argument is in a line of development that goes back to Anselm of Canterbury (1033–1109). St. Anselm's ontological argument, in its most succinct form, is as follows: "God, by definition, is that for which no greater can be conceived. God exists in the understanding. If God exists in the understanding, we could imagine Him to be greater by existing in reality. Therefore, God must exist.
Five Ways (Aquinas)The Quinque viæ (Latin for "Five Ways") (sometimes called "five proofs") are five logical arguments for the existence of God summarized by the 13th-century Catholic philosopher and theologian Thomas Aquinas in his book Summa Theologica. They are: the argument from "first mover"; the argument from universal causation; the argument from contingency; the argument from degree; the argument from final cause or ends ("teleological argument"). Aquinas expands the first of these – God as the "unmoved mover" – in his Summa Contra Gentiles.
Anselm of CanterburyAnselm of Canterbury OSB (ˈænsɛlm; 1033/4–1109), also called Anselm of Aosta (Anselmo d'Aosta) after his birthplace and Anselm of Bec (Anselme du Bec) after his monastery, was an Italian Benedictine monk, abbot, philosopher and theologian of the Catholic Church, who held the office of Archbishop of Canterbury from 1093 to 1109. After his death, he was canonized as a saint; his feast day is 21 April. As archbishop, he defended the church's interests in England amid the Investiture Controversy.
William Lane CraigWilliam Lane Craig (born August 23, 1949) is an American analytic philosopher, Christian apologist, author, and Wesleyan theologian who upholds the view of Molinism and neo-Apollinarianism. He is currently a Professor of Philosophy at Houston Christian University and a Research Professor of Philosophy at Biola University's Talbot School of Theology. Craig has updated and defended the Kalam cosmological argument for the existence of God. He has also published work where he argues in favor of the historical plausibility of the resurrection of Jesus.
Western philosophyWestern philosophy encompasses the philosophical thought and work of the Western world. Historically, the term refers to the philosophical thinking of Western culture, beginning with the ancient Greek philosophy of the pre-Socratics. The word philosophy itself originated from the Ancient Greek (φιλοσοφία), literally, "the love of wisdom" φιλεῖν , "to love" and σοφία sophía, "wisdom").
Baruch SpinozaBaruch (de) Spinoza (24 November 1632 – 21 February 1677) was a philosopher of Portuguese-Jewish origin, born in Amsterdam, the Dutch Republic, and mostly known under the Latinized pen name Benedictus de Spinoza. One of the foremost and seminal thinkers of the Enlightenment, modern biblical criticism, and 17th-century Rationalism, including modern conceptions of the self and the universe, he came to be considered "one of the most important philosophers—and certainly the most radical—of the early modern period".
Natural theologyNatural theology, once also termed physico-theology, is a type of theology (similar to deism, but it also includes religious ideas besides God) that seeks to provide arguments for theological topics (such as the existence of a deity) based on reason and the discoveries of science, the project of arguing for the existence of God on the basis of observed so-called natural facts, and through natural phenomena viewed as divine, or complexities of nature seen as evidence of a divine plan (see predestination) or W
