The Preamble to the United States Constitution was mainly written by Gouverneur Morris, a Pennsylvania delegate to the 1787 Constitutional Convention held in Philadelphia. He led the Committee on Style, which prepared the final draft of the Constitution, including the Preamble. Gouverneur Morris is credited with crafting the iconic opening phrase "We the People of the United States" and listing the Constitution's broad goals such as forming a more perfect Union, establishing justice, and securing liberty.