Gentleman of the Jury, I have yet a host of authorities before me, but I will not waste time by quoting them; as I am convinced you must now be quite satisfied, from what I have already adduced, that every Englishman has an undoubted right to investigate all subjects--whether religious or political--and to publish the result of the investigation for the benefit of society at large; but, Gentlemen, in closing what I have to say on this part of the subject, I beg to lay before you two striking and convincing passages from Lord Brougham and Dr. Southwood Smith--two of the most intellectual and eminent individuals of the present day. Gentlemen, the first passage I will quote is from Dr. Southwood Smith, who strikingly and beautifully describes the proper boundary of human investigation; and I beg the particular attention of the learned Attorney-General to this passage. "There is no proper boundary to human investigation," says the doctor, "but the capacity of the human mind. Whatever the faculties enable it to understand, it ought to examine without any restraint on the freedom of its inquiry, and without any other limit to its extent than that which its great Author has fixed, by withholding from it the power to proceed farther. When the means of conducting the human understanding to its highest perfection shall have become generally understood, this freedom of inquiry will not only be universally allowed, but early and anxiously inculcated, _as a duty_ of primary and essential obligation." Gentlemen, I now beg you to listen to the extract I am about to read from _Lord Brougham’s Inaugural Address to the University of Glasgow_. "As men will no longer suffer themselves to be led blindfold in Ignorance, so will they no more yield to the vile principle of judging and treating their fellow-creatures, not according to the intrinsic merit of their actions, but according to the accidental and involuntary coincidence of their opinions. The great truth has finally gone forth to the ends of the earth, _that man shall no more render_ ACCOUNT TO MAN FOR HIS BELIEF, OVER WHICH HE HAS HIMSELF NO CONTROL. "Henceforward nothing shall prevail upon us to praise or to blame any one for that which he can no more change than he can the hue of his skin or the height of his stature. Henceforward, treating with entire respect those who conscientiously differ from ourselves, the only practical effect of the difference will be, to make us enlighten the ignorance, on one side or the other, from which it springs, by instructing them, if it be theirs, ourselves, if it be our own; to the end that the only kind of unanimity may be produced which is desirable among rational beings,--the agreement proceeding from full conviction after the freest discussion."--_Lord Brougham._ Gentlemen, after hearing these splendid passages, will it be possible for you to sanction a renewal of persecution to crush freedom of opinion?