Ontological arguments: making your dreams come true

I came across this image while preparing a lecture on Logic:

I couldn’t help but think of Anselm’s Ontological Argument (slightly paraphrased):

I am thinking of a being that is maximally great.  Such a being is so great it couldn’t not exist.  Therefore, this being does exist!

See also:

• Arguing about ontology
• The Ontological Argument meets Christianity
• Resurrecting Victor Stenger’s ontological pizza
• Conclusive proof that there is no God
• Atheistic Ontological Argument v3