People blow it when they fail to remember that.
In fact, Bob wrote a book about it. Not always an easy prescription these days, but one Bob offered with good cheer. Roaring Lambs, which was addressed primarily to a Christian audience, urged readers to share their faith not by haranguing others but by being involved and setting a good example. Most people rarely poke their heads above the trenches. I'm not sure what it is that makes some charge and keeps others hunkered down.