What belief was generally held by the delegates to the constitutional convention of 1787

Their initial intention was to meet for the purpose of revising the Articles of Confederation, to add some strength to its authority without threatening the sovereignty of the states themselves.

herodotus taught this. herodotus was an ancient greek historian who was born in halicarnassus in the persian empire. he is known for having written the book the histories, a detailed record of his "inquiry" on the origins of the greco-persian wars.

congress also has implied powers, which derive from the necessary and proper clause of the constitution and permit congress "to make all laws which shall be necessary and proper for carrying into execution the foregoing powers, and all other powers vested by this constitution in the government of the united states.