The First Amendment is widely considered to be the most important part of the Bill of Rights. It protects fundamental rights of conscience, the freedom to believe and express different ideas in various ways. Human rights are based on values that keep society equitable, just and equal. They include the right to life, the right to health, and the right not to be subjected to torture.
The Universal Declaration of Human Rights contains 30 human rights that belong to all people, everywhere, simply because they are people. So what is the most important human right? The First Amendment guarantees freedom of religion, expression, assembly, and the right to petition. It prohibits Congress from promoting one religion over others and also from restricting a person's religious practices. It guarantees freedom of expression by prohibiting Congress from restricting the press or the rights of individuals to express themselves freely.
It also guarantees the right of citizens to assemble peacefully and submit petitions to the government.