It's hard to quantify this in terms of percentages, because many people lead productive lives and then get ill again, and have to start over. (health.com)
Yet people with spinal cord injuries may be able to lead productive lives with rehabilitation therapies and assistance. (hupy.com)
Just as free - market theory and evidence provided the intellectual framework that guided free - market advocacy, we have the empirically supported theory that is needed to make the case for evolving a society in which the dominant value is ensuring that every person has the basic conditions necessary to lead a productive life in caring relationships with others.9 (evolution-institute.org)