Above all else, the mentat must be a generalist, not a specialist. It is wise to have decisions of great… — Frank Herbert
Above all else, the mentat must be a generalist, not a specialist. It is wise to have decisions of great moment monitored by generalists. Experts and specialists lead you quickly into chaos. The mentat-generalist, on the other hand, should bring to decision-making a healthy common sense. He must not cut himself off from the broad sweep of what is happening in his universe. He must remain capable of saying: "There's no real mystery about this at the moment. This is what we want now. It may prove wrong later, but we'll correct that when we come to it." The mentat-generalist must understand that anything which we can identify as our universe is merely a part of larger phenomena. But the expert looks backward; he looks into the narrow standards of his own specialty. The generalist looks outward; he looks for living principles, knowing full well that such principles change, that they develop. It is to the characteristics of change itself that the mentat-generalist must look. There can be no permanent catalogue of such change, no handbook or manual. You must look at it with as few preconceptions as possible, asking yourself: "Now what is this thing doing?"
Source: Wikiquote · CC BY-SA 4.0
More from this book
The one-eyed view of our universe says you must not look far afield for problems. Such problems may never arrive. Instead, tend to the wolf within your fences. The packs ranging outside may not even exist.
One of us had to accept the agony, and he was always the stronger.
The body of Muad'dib is a dry shell like that abandoned by an insect. He mastered the inner world while holding the outer in contempt, and this led to catastrophe. He mastered the outer world while excluding the inner world, and this delivered his decendants to the demons. The Golden Elixer will vanish from Dune, yet Muad'dib's seed goes on, and his water moves our universe.

