understood in the same sense, in every part of the country, and in every
class or profession.[3]

REPUTABLE USE.--Let us examine now the effect produced by a third
kind of expression, namely, words and phrases "not used by writers and
speakers of established reputation."[4] Let us take as our illustrations
the familiar expressions, "He _done_ it" and "Please _set_ in this seat."
Each of these expressions is common at the present time, and its meaning
is instantly clear to any one who speaks English. But these expressions,
not being used by well-informed and careful speakers, produce in the mind
of a well-informed bearer an impression of vulgarity like that which we
get from seeing a person eat with his knife. In language, as in manners
and fashions, the law is found in the custom of the best people; and
persons who wish to be classed as cultivated people must speak and write
like cultivated people. There is no moral wrong in a person's saying
"Please _set_ in this seat," and if he does say it he will probably be
understood; but persons who use this or any other expression which is not
in reputable use run the risk of being classed as ignorant, affected, or
vulgar.

GOOD USE.--It appears, therefore, that words and phrases, in order to
be proper expressions for use in English prose, (1) must be in common use
at the present time; (2) they must be used, and used in the same sense, in
every part of the country, and in every class and profession; (3) they
must be expressions used by writers and speakers of established
reputation. In other words, our expressions must be in _present,
national_, and _reputable_ use. Expressions which fulfil these three
conditions are said to be in _good use_.

The next question that presents itself to one who wishes to use English