There are, however, several very obvious reasons why the most thorough canvass of business by the Committees, and the most exhaustive and discriminating discussion of all its details in their rooms, cannot take the place or fulfill the uses of amendment and debate by Congress in open session. In the first place, the proceedings of the Committees are private and their discussions unpublished. The chief, and unquestionably the most essential, object of all discussion of public business is the enlightenment of public opinion; and of course, since it cannot hear the debates of the Committees, the nation is not apt to be much instructed by them. Only the Committees are enlightened. There is a conclusive objection to the publication of the proceedings of the Committees, which is recognized as of course by all parliamentary lawyers, namely, that those proceedings are of no force till confirmed by the House. A Committee is commissioned, not to instruct the public, but to instruct and guide the House. Indeed it is not usual for the Committees to open their sittings often to those who desire to be heard with regard to pending questions; and no one can demand a hearing as of right. On the contrary, they are privileged and accustomed to hold their sessions in absolute secrecy. It is made a breach of order for any member to allude on the floor of the House to anything that has taken place in committee, "unless by a written report sanctioned by a majority of the Committee;" and there is no place in the regular order of business for a motion instructing a Committee to conduct its investigations with open doors. Accordingly, it is only by the concession of the Committees that arguments are made before them.