of language, character, and action, and the interactions of these three components; these are fused together throughout the play. He explains that action normally determines the major means of characterization. For example, the play Julius Caesar, is a good example for a character without credibility, Brutus. Another principle he states is the importance of these three components' effect on each other; the important repercussion of this being character's impact on action. Augustus Taber Murray also examines the importance and degree of interaction between plot and character. He does this by discussing Aristotle's statements about plot and character in his Poetics: that plot can exist without character, but the character cannot exist without plot, and so the character is secondary to the plot. Murray maintains that Aristotle did not mean that complicated plot should hold the highest place in a tragedy play. This is because the plot was, more often than not, simple and therefore not a major point of tragic interest. Murray conjectures that people today do not accept Aristotle's statement about character and plot because to modern people, the most memorable things about tragedy plays are often the characters. However, Murray does concede that Aristotle is correct in that "[t]here can be no portrayal of character [...] without at least a skeleton outline of plot". One other term frequently used to describe the dramatic revelation of character in writing is "persona." While the concept of ethos has traveled through the rhetorical tradition, the concept of persona has emerged from the literary tradition, and is associated with a theatrical mask. Roger Cherry explores the distinctions between ethos and pathos to mark the distance between a writer's autobiographical self and the author's discursive self as projected through the narrator. The two terms also help to refine distinctions between situated and invented ethos. Situated ethos relies on a speaker's or writer's durable position of authority in the world; invented ethos relies more on the immediate circumstances of the rhetorical situation. Character, or ethos, in pictorial narrative Ethos, or character, also appears in the visual art of famous or mythological ancient Greek events in murals, on pottery, and sculpture referred to generally as pictorial narrative. Aristotle even praised the ancient Greek painter Polygnotos because his paintings included characterization. The way in which the subject and his actions are portrayed in visual art can convey the subject's ethical character and through this the work's