Descartes developed Anselm's argument. ... From this, Descartes believes we can conclude that God exists because existence is a predicate of a perfect being; Therefore, God must exist to avoid being self-contradictory. Descartes says that to imagine God without existence is like imagining a triangle without three sides. ... However, Kant made a more successful criticism of Descartes" version of the argument. He objected to Descartes claim that denying God's existence is comparable to denying that a triangle has three sides. ...

• Word Count: 662
• Approx Pages: 3
• Grade Level: Undergraduate

Spinoza was a materialist philosopher, who rejected Descartes' dualism between body and soul, "I think therefore I am,"" and instead regarded all of nature, including mankind, as consisting of a single substance. ...

• Word Count: 2438
• Approx Pages: 10
• Has Bibliography
• Grade Level: Undergraduate