I believe in Science.
So, I believe in the Big Bang theory, that the beginning of the Universe was created by a massive explosion, which is where we got things like chemical elements that power the suns of the universe, etc etc.
I believe in Evolution, which is what Darwin and Alfred Russell Wallace talked about, and I believe that it is proven more than enough for it to be considered as something more than just "The theory which has massive holes in it." As Richard Dawkins says, only people who are woefully uninformed actually believe that Evolution has huge gaps in it. The fossil evidence grows more and more compelling for the arguement of Evolution each and every day, while people such as myself, Atheists and Scientists, have the same arguement thrown at us. "Theres no proof" etc etc.
It makes me smile that the only way a scientific idea can be proved as fact is when it is peer reviewed in journals and torn apart by reviewers and other, higher scientists, when a book written thousands of years ago is left alone without being subject to such stringent reviews.