Human Rights cover a great number of issues and affect virtually all fields of politics and society. Because of their complexity, it is crucial to determine the central idea that links all human rights norms: Human rights are based on respect for human dignity. With regard to their dignity, all human beings are equal. Thus human rights are intended to ensure equality and the effective elimination of discrimination. In this sense, the 1948 Universal Declaration of Human Rights states programmatically: "All human beings are born free and equal in dignity and rights."