Robert Anton Wilson said, “I don’t believe in any thing. I understand the evidence.” I dislike using the word as a lazy description of a sophisticated process. Science uses models to predict events. It predicts the sun will come up in the morning and my room mate will snore. “My model predicts” seems to roll off my tongue smoothly. Without the lazy “believe” in the way you make clear statements. Not “I believe we should …”, just a clean “We should” or even a gentle “I think” will make you address things more better, double plus good, trust me. My models predict good results with even moderate applications. See how easy that is?