If philosophy is to "enrich our intellectual imagination and diminish the dogmatic assurance which closes the mind against speculation," how do you explain Geor

If philosophy is to "enrich our intellectual imagination and diminish the dogmatic assurance which closes the mind against speculation," how do you explain George W. Bush's relatively high marks for Philosophy 15b? http://2004.georgewbush.org/bios/yale-transcript.asp http://2004.georgewbush.org/bios/yale-transcript.asp