This paper is concerned with the principles of adjudication (diiudicatio, Beurteilung) and execution (executio, Ausübung) in the notes of Kant’s lectures on natural right (“Feyerbend’s Natural Right”). In this manuscript these principles are used as a binary scheme twice, each time in the introduction to the first chapter. To explain the meaning of these concepts I use other cases of their use in Kant’s philosophy. I have established that they are used as a pair only in the notes of various lecture courses and in rough drafts. The majority of these uses occur in the pre-critical period. In the critical period they can be encountered only in the first half of the 1780s. The latest case occurs in “Feyerabend’s Natural Right”. More often than not these terms are used in moral philosophy. Here they have two main meanings: the principle of adjudication corresponds to the objective foundation of volition, whereas the principle of execution points to the objective foundation; to adjudicate moral duty reason alone is enough, to execute it external (divine) will needs to be posited. The research has established that Kant borrows these concepts from the lecture course on logic where their main meaning is different: the principle of adjudication serving to determine theoretical cognition and the principle of execution, practical cognition. The source of the transformation that occurred in transferring these concepts to the sphere of moral philosophy is Meier’s Compendium. The pair is not used in it but the separation of knowledge into theoretical and practical is present. Meier defines practical knowledge as knowledge that can affect volition. “Feyerabend’s Natural Right” reflects all three meanings of the principles of adjudication and execution. © Крыштоп Л. Э., 2024.