Despite its exalted status in post-war analytical educational philosophy as
probably the main aim of liberal education, the basic philosophical psycho
logy of autonomy or self-determination is prey to certain not widely acknow
ledged conceptual difficulties, In relation to this problem, the present pa
per explores different conceptions of evaluation and competing liberal and
communitarian conceptions of rational choice and decision, to the ultimate
end of defending a crucial connection-discerned by many ancient and modern
philosophers-between rational self-direction and the possibility of objecti
ve knowledge and truth.