There is no doubt but anger is moved by the species of an injury; but whether that motion be voluntary or involuntary is the point in debate; though it seems manifest to me that _anger_ does nothing but where the mind goes along with it, for, first, to take an offence, and then to meditate a revenge, and after that to lay both propositions together, and say to myself, “This injury ought not to have been done; but as the case stands, I must do myself right.” This discourse can never proceed without the concurrence of the will.