Felix Somló's Juristische Grundlehre is, without a doubt, a masterpiece of legal theory and has quickly become a classic of analytical jurisprudence. This paper will investigate what exactly its contribution to legal theory is. It concentrates on the reception of Somló's book in the German post-war legal theory and in doing so, the prevailing Somló-pictures (like 'Somló the Neo-Kantian') will be critically assessed. Some of his genuine ideas are still present, surprisingly even in a more technical field, the German doctrine of administrative law.