nciples upon which he bases his arguments. But in
addressing a mixed audience, many of whom are not church members, such an
argument might not be convincing, because his hearers might deny the
validity of the premises from which his conclusions were drawn. In such a
case he must either keep to general theories which his auditors do
believe, or by inductive methods seek to prove the truth of the general
principles themselves.

If in support of our view we quote the opinion of some one whom we believe
competent to speak with weight and authority upon the question, we must
remember that it will have weight with our audience only if they too look
upon the person as an authority. It proves nothing to a body of teachers
to say that some educational expert believes as you do unless they have
confidence in him as a man of sound judgment. On the other hand, it may
count against a proposition to show that it has not been endorsed by any
one of importance or prominence.

In a similar way a maxim or proverb may be quoted in support of a
proposition. If a boy associates with bad company, we may offer the maxim,
"Birds of a feather flock together," in proof that he is probably bad too.
Such maxims or proverbs are brief statements of principles generally
believed, and the use of them in an argument is in effect the presentation
of a general theory in a form which appeals to the mind of the hearer and
causes him to believe our proposition.

+185. Argument by Inference.+--The statement of a fact may be introduced
into an argument, not because the fact itself applies directly to the
proposition we wish to prove, but because it by inference suggests a
general theory which does so apply. Though the reader may not be conscious
of it, the presence of this general theory may influence his decision even
more than the explicit statement of the general theory would.

An argument implies that there are two sides to a question. Which you
shall take depends on the way you look on it, that is, on what may be
called your mental point of view. Therefore any fact, allusion, maxim,
comparison, or other statement which may cause you to look at the question
in a different light or from a different point of view may be used as an
argument. In effect, it calls up a general theory whose presence affects
your decision. Notice how brief the argument is in the following selection
from Macaulay:--

Many politicians of our time are in the habit of laying