In 1765 Otis Jr. attended the Continental Congress, otherwise known as the Stamp Act Congress, along with other colonial delegates. The resolutions of the Congress stated that the Stamp Act had "a manifest tendency to subvert the rights and liberties of the colonists" and that "the only Representatives of the People of these Colonies, are Persons chosen therein by themselves, and that no Taxes ever have been, or can be Constitutionally imposed on them, but by their respective Legislature." Furthermore, it was declared that, "it is unreasonable and inconsistent with the Principles and Spirit of the British Constitution, for the People of Great-Britain, to grant to his Majesty the Property of the Colonists."