Is atheism self-contradictory ?

[GUBU]

As a Muslim, I also consider that some aspects of the Qur'an are strong arguments, one of them is the fact that it is inimitable ( no human mind can make a similar literary achievement ).

As an English speaker I can pick any work of Shakespeare and put my hands on a better, more perfect creation than your qu'ran (most of which was blatantly stolen from earlier holy books any way). I could also point to works from authors as diverse as Alfred Bester, Terry Pratchett, Carl Sagan, Baruch Spinoza, Thomas Packenham or thousands, nay millions, of others which are, objectively speaking more perfect than the qu'ran.

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I'll trust my brain because it's just that, my brain. I'm sorry that you think you have an untrustworthy monkey brain. 

Ad hom.

Repeating what you yourself said cannot be an ad hominen attack. You've discounted your own brain as untrustworthy, thus validating any subsequent rebuke along the same lines.