 Why just these three? And why only these three? Aristotle does not give an elaborate defence of this tripartition. However, he says in a different context that a speech consists of three things: the speaker, the subject that is treated in the speech, and the listener to whom the speech is addressed (Rhet. I.3, 1358a37ff.). Probably, he thinks that each of these three ingredients of a speech contributes to persuasion in a specific way, in that persuasion either flows from the person of speaker, namely that he or she comes across as credible, or from the condition of the hearer, i.e. whether they are in an emotional state and which emotional state they are in or from the subject that is treated in the speech, i.e. from the arguments or proofs that are meant to support a suggested point of view. Summarizing the account of the three pisteis in a later section of the book, Aristotle actually insists that there can be no other technical means of persuasion: