Hans Kelsen (1881-1973) was an Austrian jurist, legal philosopher, and the principal figure behind the Pure Theory of Law. His work has had a significant impact on legal theory and philosophy, particularly in the 20th century. Here are some key aspects of Kelsen's philosophy and thoughts:
### 1. **Pure Theory of Law**:
- Kelsen's most significant contribution is the Pure Theory of Law, which seeks to describe law as a system of norms without


