Now, the distinction of the doctrine of happiness from the doctrine of morals, in the first of which empirical principles amount to the whole foundation whereas in the second they amount not even to the slightest addition to it, is the first and most important enterprise incumbent upon the Analytic of Pure Practical Reason, in which the Analytic must proceed as meticulously and indeed, if called upon, as painstakingly as the geometrician ever does in his occupation.