The act of writing out your thoughts is a direct aid to concentration, and tends to enforce the habit of choosing the best language. It gives clearness, force, precision, beauty, and copiousness of style, so valuable in extemporaneous and impromptu speaking.

One eminent speaker used practically no gesture; another was in almost constant action. One was quiet, modest, and conversational in his speaking style; another was impulsive and resistless as a mountain torrent.