Human rights are derived from the concept of human dignity and the relationship between individuals and organized society. They allow for the full development of one's personality and are essential to living a meaningful life. The Universal Declaration of Human Rights, adopted by the UN in 1948, outlines civil, political, economic, social and cultural rights. It addresses the rights to life, equality, privacy and many other freedoms. In India, the right to freedom of speech and expression is a fundamental right under the constitution, though it is subject to reasonable restrictions in interests such as national security and public order.