What these two analyses of concepts had in common is the following hard choice. If we think of concepts as telling us something universal and necessary, then we have to think of them as having nothing to do with the world of sense experience; and if we think of concepts as having something to do with the world of sense experience, then we have to abandon the idea of knowing any real universal and necessary truths. In other words, experience and necessity have nothing to do with each other. This premise too was critical for Kant’s analysis.
