Then he is not lucid.

But he shall convey so much as that, in such a manner as to give the reader no trouble in arriving at the conclusion.

Therefore he is easy.

The subject here suggested is as little complicated as possible; but in the intercourse which is going on continually between writers and readers, affairs of all degrees of complication are continually being discussed, of a nature so complicated that the inexperienced writer is puzzled at every turn to express himself, and the altogether inartistic writer fails to do so.

Who among writers has not to acknowledge that he is often unable to tell all that he has to tell?
Words refuse to do it for him.