Not that all Presidents have or had anything great to say, but some did:
American Presidency Project (selected documents: 1789 – present)
Public Papers of the Presidents of the United States (1991 to present)
Not that all Presidents have or had anything great to say, but some did:
American Presidency Project (selected documents: 1789 – present)
Public Papers of the Presidents of the United States (1991 to present)