John Adams actually said...

"Some additional documents having relation to the objects of the mission to the congress at Panama, and received since the communication of those heretofore sent, are now transmitted to the Senate."

"The purpose of the meeting itself is to deliberate upon the great and common interests of several new and neighboring nations."

"My first and greatest inducement was to meet in the spirit of kindness and friendship an overture made in that spirit by three sister Republics of this hemisphere."

"It was not considered a conclusive reason for declining this invitation that the proposal for assembling such a Congress had not first been made by ourselves."