Generative thinking adds and multiplies; evaluative thinking subtracts and divides. To write a sermon, we employ both thought processes, but each works best when the other is dormant. (Realistically, we don’t do one or the other exclusively, but one dominates.) We generate the most ideas when we aren’t testing whether each new thought is true, logical, relevant, or important. Evaluative thinking is a hostile environment for new life. Conversely, we evaluate ideas best when we stop mental seed-proliferation