III.i.7 (457,2) As upon thee, Macbeth, their speeches shine] Shine, for appear with all the lustre of conspicuous truth.

III.i.56 (459,4) as, it is said,/Mark Anthony’s was by Caesar] Though I would not often assume the critic’s privilege of being confident where certainty cannot be obtained, nor indulge myself too far in departing from the established reading; yet I cannot but propose the rejection of this passage, which I believe was an insertion of some player, that having so much learning as to discover to what Shakespeare alluded, was not willing that his audience should be less knowing than himself, and has therefore weakened the authour’s sense by the intrusion of a remote and useless image into a speech bursting from a man wholly possess’d with his own present condition, and therefore not at leisure to explain his own allusions to himself.  If these words are taken away, by which not only the thought but the numbers are injured, the lines of Shakespeare close together without any traces of a breach.

  My genius is rebuk’d.  He chid the sisters.

This note was written before I was fully acquainted with Shakespeare’s manner, and I do not now think it of much weight; for though the words, which I was once willing to eject, seem interpolated, I believe they may still be genuine, and added by the authour in his revision.  The authour of the Revisal cannot admit the measure to be faulty.  There is only one foot, he says, put for another.  This is one of the effects of literature in minds not naturally perspicacious.  Every boy or girl finds the metre imperfect, but the pedant comes to its defence with a tribrachys or an anapaest, and sets it right at once by applying to one language the rules of another.  If we may be allowed to change feet, like the old comic writers, it will not be easy to write a line not metrical.  To hint this once, is sufficient. (see 1765, VI, 424, 2)

III.i.65 (460,5) For Banquo’s issue have I fil’d my mind] [W:  ’filed] This mark of contraction is not necessary.  To file is in the bishop’s Bible.

III.i.69 (460,6) the common enemy of man] It is always an entertainment to an inquisitive reader, to trace a sentiment to its original source; and therefore, though the term enemy of man, applied to the devil, is in itself natural and obvious, yet some may be pleased with being informed, that Shakespeare probably borrowed it from the first lines of the Destruction of Troy, a book which he is known to have read.  This expression, however, he might have had in many other places.  The word fiend signifies enemy.