The transcendental schemata permit the actual application of the categories to experience. The "System of all Principles' develops the most general propositions which the pure understanding is capable of furnishing upon this basis. In the strict sense of the expression Grund-sätze, literally "grounding propositions", these principles "contain in themselves the grounds of other judgements", although they are not themselves "grounded in higher and more universal modes of knowledge" (B 188).