Groundwork 4-8

26 Mar, 2026

In four paragraphs, Kant shows the function of reason is the cultivation of good will. The argument is based on function as goes like this: everything we have is for a purpose and is best suited for that purpose; reason doesn't achieve happiness or contentment, a function much better handled by instincts or the impulsive drive (think dopamine fixes); reason's purpose is not for happiness but something else; reason is not simply for another purpose alongside happiness, but a purpose superior to happiness; reason's "true function must be to produce a will which is good"; the good will is the ultimate end, the unconditional good, and all other goods such as happiness or contentment are subordinate to the good will.

I find this teleological explanation (using purpose or function of something) is lacking given today's science. It could be better to accept reason as the pinnacle of evolutionary development that enables perspective-taking which yields reflection and consideration of others, and I think I'll develop this logic further. The Stoics and Aristotle accept that thinking and not instinct is the function of mankind due to the gift of reason. Kant says that reason is simply the faculty for which a good will comes about, while the Distributed Authorship principle explains this mechanism of how a good will neural architecture is created.

The key line for me is near the end of this subsection. Kant says that "the first and unconditioned purpose" (the formation of a good will) "is required" for "the cultivation of reason". The German is "die Cultur der Vernunft" or the Cultur of reason, where Cultur means a deliberate tending over time, i.e. a slow and sustained development and growth. This phrasing shows that Kant anticipated that the process of forming a good will extended through time and required a sustained effort of active growth. This process is exactly what Distributed Authorship satisfies: a slow formation of a neural architecture that makes decisions consistent with moral law, formed through sustained moral actions and building the appropriate constraints on future behavior.