He was responding to the front-page story of the Post Courier newspaper today, of seven M-P's taking up further studies, which may be in breach of provisions of the constitution.
In his personal explanation, Mr Marape says, he is not breaking any laws and it is also within his rights to take up further studies.
Mr Marape says, he's doing his Masters in Business Administration, at his own time and out of his own salary.
He says, this does not come in conflict with public time, as he attends all Cabinet meetings, government caucus as leader of government business and other duties of Finance and Education Minister.
Mr Marape says, he's doing this for his own betterment, so he can contribute meaningfully to to development of the country and his electorate. NBC