Neither does exposition deal with reasons and inferences--that is the field of argument. A series of connected statements intended to convince a prospective buyer that one automobile is better than another, or proofs that the appeal to fear is a wrong method of discipline, would not be exposition. The plain facts as set forth in expository speaking or writing are nearly always the basis of argument, yet the processes are not one. True, the statement of a single significant fact without the addition of one other word may be convincing, but a moment's thought will show that the inference, which completes a chain of reasoning, is made in the mind of the hearer and presupposes other facts held inconsideration.
In like manner, it is obvious that the field of persuasion is not open to exposition, for exposition is entirely an intellectual process, with no emotional element.
