I try to keep in mind that beliefs can (and often should) change. Logically speaking odds are very good that at least some of what I believe is true at any given time actually isn't true.

And that's necessarily a fault of mine.

I may simply have learned it wrong or learned from someone misinformed or even it simply is no longer true. I find it more important to look at how a belief changes the world around it. Looking at its implications help me far more than examining it alone...and often help me determine its truth besides.

I have used always a balance of cognition and intuition, enhanced by ongoing learning, research. I also trust that if and when i have to know, i will. I've never been disappointed.

I also have a large helping of acceptance that i can not know all things, or even everything i don't know, so some things i just accept on trust and faith.

"Search your feelings. You know it to be true." - Darth Vader

As a reality check I like the scientific method but I also have the sense to do a gut check as well. Believe half of what you see with your own eyes and none of what you hear.

You examine all the evidence and then you can use the balance of probability test. As you can only prove a positive and not a negative it is not possible to prove that God doesn’t exist, the best we can say is that there is no evidence that he does.