The question is, presuming all of existence as we know it doesn't just happen to be here magically, what more is there to explain everything that's here that's clearly beyond our knowledge. I wouldn't presume to call it a higher being or a force. Now read the rant about how labelling it these limiting terms is narrow-minded and ignorant again.
If your concern is the truth, you're not doing yourself a favor by calling things descriptive names before you have any indication that they can be described by such.
You mentioned Descartes' (among others') proof of god. I was referring to the one you referred to. 
I didn't mean any offense, Elysian Thebes. I apologize if I was an asshole. You see, I get used to retards who won't respond to subject matter but cry about never responding to subject matter. You hit the subject matter AND milked the cows. Hillarious. 
>>and your claim that people that beleive in God are psychotic is just as arrogant...<<
You're the one living your life based on the belief that there are invisible pink uncorns in the sky that will punish you unless you do what they magically told crazy people to write down to guide humanity's actions thousands of years ago. Don't do anything like tell me specifically what about my explanation of why I don't alter my life based upon myths with NO evidence to support their claims you find fault with. That would be too intellegent and we could both learn where we disagree and why. Then we might actually respect one another and have a discussion. Just post saying "you're arrogant for saying you see this behavior as crazy! asshole!" and leave it at that. Very enlightening. You're a great communicator!
>>first cause is the original definition of the gods<<
Only so far as the gods are necessarily human-like creatures with mega powers and human traits. I have a hard time accepting that.
That's a big redefinition of what we actually know (or rather, don't know).
"For all we know, this prime mover is a mad scientist from another realm with laws we can't even conceive of, who created our universe as a 5th grade science project and he doesn't even care about us anymore."
Justinian I has demonstrated this point much more humorously than I could have hoped to. 
Anyone referring to a prime mover as "he" is already accepting some of those traits we're saying there's no reason to presume. 
And inviltrist wraps things up nicely so I don't have to question your recognition of "order and harmony". Because I don't recognize them. Sure we survive in the current temperature range. But looking to evolutionary theory as the most likely useful theory in explaining life in its current states, this is a result OF the temperature range--not an indication that the temperature range was decided FOR our survival.
[I wish I could obey forum rules]