The document discusses the revival of natural law and value-oriented jurisprudence throughout the 20th century, emphasizing its historical significance and relation to individual freedom. It highlights various schools of thought, including neo-Kantian and neo-scholastic natural law, and introduces the legal theories of figures like Duguit and the policy-science approach by Lasswell and McDougal. The conclusion reflects on the complexity of law, likening it to a large mansion with many intricacies.