The measure of (mental) health is flexibility (not comparison to some 'norm'), the freedom to learn from experience ... to be influenced by reasonable arguments ... and the appeal to the emotions ... and especially the freedom to cease when sated. The essence of illness is the freezing of behavior into unalterable and insatiable patterns.
David BrinThere's no doubt that scientific training helps many authors to write better science fiction. And yet, several of the very best were English majors who could not parse a differential equation to save their lives.
David Brin