be sure to tell steven hawkings that he's "irrational".
while i'm not an atheist, there is nothing irrational about atheism.
No problem. If Stephen Hawking is an Atheist, then his Atheism is irrational. He has no more evidence there is or is not a God than anyone else. Any conclusion made in the absence of evidence is pure belief and pure belief is irrational. I doubt he would argue otherwise.
spirituality, which I have no problem with, is faith-based and has nothing to do with logic.
Any position arrived at in the absence of evidence is faith-based and has nothing to do with logic. I have no problem with any of them.
no one has to prove a negative.
You do if one claims it to be true. Calling it a negative does not get you off the hook of backing up a claim. And it is quite easy to prove a negative. You just have to have the evidence. If you don't have the evidence, what you do is not make the claim or admit it is nothing but belief.
Zeus said shut the fuck up. Why do you defy a god? Prove he didn't say it.