Abstract

‘Rationality’ here only concerns knowledge, e.g., ways to acquire scientific knowledge. Many factors are required for human rationality to exist and develop, e.g., life and evidence-based thinking. Rationality’s need for those factors, hence their value to rationality, is rationally-unquestionable. Those factors require certain moral, political, social, legal, health-care etc values to be practised. This implies a pro-rationality values-theory, with one obligatory, general end – a uniquely rationally-unquestionable end. That theory has deeply-humanly-meaningful, universal applications: the theory has implications for current and all possible moral, political etc issues. The theory’s sub-values prescribe much prescribed by some other theories, e.g., non-sexism, non-racism, types of liberty, happiness, peace, altruism and fairness. However, other theories lack pro-rationality theory’s maximum possible rational-unquestionability, internal coherence and coherence with rationality. The theory encourages freedom in a-rationality areas, areas irrelevant to its obligatory end. The theory inherently requires its advocates to be (self )critical, rationally viewing their human-suggested specifics as often fallible or unavoidably approximate. Kant’s, Rawls’s, Aristotle’s, Mill’s and certain others’ ideal societies or lives fundamentally require rationality. Rationality-required factors and associated practised values are needed here. All societies and lives are rationality-required to be based on achieving that rationally-unquestionable general end.