Morality is not properly the doctrine how we should make ourselves happy, but how we should become worthy of happiness.[Moral nicht eigentlich die Lehre, wie wir uns glücklich machen, sondern wie wir der Glückseligkeit würdig werden sollen.]
Source:Part I. Elements of Pure Practical Reason, Book II. Dialectic of Pure Practical Reason, Chapter II. Of the Dialectic of Pure Reason in Defining the Conception of the Summum Bonum