United States Constitution - Amendments: Article I.

Congress shall make no law respecting an establishment of religion, or prohibiting the free exercise thereof; or abridging the freedom of speech, or of the press; or the right of the people peaceably to assemble, and to petition the Government for a redress of grievances.

The full text of U.S. Constitution's " Bill of Rights" can be read on the Web server of Cornell's Legal Information Institute.