 If that is true, then not just any causally undetermined choice, or just any agent caused choice, or just any randomly generated selection between alternatives will qualify as a free choice for which the choosing agent is morally responsible. Moral freedom also requires a minimal degree of rationality on the part of the choosing agent, including an ability to learn from experience, an ability to discern normal reasons for acting, and a capacity for moral improvement. With good reason, therefore, do we exclude lower animals, small children, the severely brain damaged, and perhaps even paranoid schizophrenics from the class of free moral agents. For, however causally undetermined some of their behaviors might be, they all lack some part of the rationality required to qualify as free moral  agents.[9] 