Defending principlism well understood.

After presenting the current version of principlism, in the process repudiating a widespread deductivist misinterpretation, a fundamental metaethical disagreement is developed by outlining the deductivistic critique of principlism. Once the grounds for this critique have been understood, the dispute between casuistry, deductivism and principlism can be restructured, and the model of "application" proven to be the central difference. In the concluding section it is argued that principlism is the most attractive position, if the perceptual model of weak intuitionism is made more explicit.