It has often been said the good is its own reward, and that it is in so far not only right but prudent to will the good. A prudent eudaemonist may be capable of understanding this quite well. In thought, in the form of a possibility, he may approach very near to the good; because within the sphere of the possible, as within the sphere of the abstract, the possible constitutes a mere appearance. But when the transition is about to become actual, prudence finds it impossible to meet the test. The actual interval of time separates the good and its reward to long, so everlastingly, that prudence cannot bring them together, and the eudaemonist begs to be excused (306).
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All wisdom of life is abstraction, and only the most wretched eudaemonism has no abstraction, but is sheer enjoyment of the moment. In the degree to which a eudaemonistic philosophy of life is prudent it has some abstraction; the more prudence, the more abstraction. This fact gives the eudaemonist a superficial resemblance to the ethical and the ethico-religious, and it might seem for a moment as if the two views might meet. And yet it is not so, for the very first step taken by the ethical is an infinite abstraction, and what happens? The step becomes too long for the eudaemonist, and although some abstraction is prudence, an indefinite abstraction is madness to the eudaemonist.
Perhaps a philosopher will wish to say here that I move only within the sphere of reflection. On paper, to be sure, it is easier to put things together; one risks everything (on paper), and at the same instant one has everything. But if I risk everything in the medium of existence, this is by itself a lifelong task, and when I remain with my venture in existence, I shall repeatedly have to continue to venture. The honorable philosopher, as usual, transfers the scene from existence to paper (p. 381, footnote 2).
– Søren Kierkegaard
(Concluding Unscientific Postscript,
trans. Swenson & Lowrie)