There are certain requirements in public speaking which you and every other speaker must observe. You must be grammatical, intelligent, lucid, and sincere. These are essential. You must know your subject thoroughly, and have the ability to put it into pleasing and persuasive form.
But beyond these considerations there are many things which must be left to your temperament, taste, and individuality. To compel you to speak according to inflexible rules would make you not an orator but an automaton.
The temperamental differences in successful speakers have been very great. 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.
It is safe to say that almost any man, however unpretentious his language, will command a hearing in Congress, Parliament, or elsewhere, if he gives accurate information upon a subject of importance and in a manner of unquestioned sincerity.
You will observe in the historical accounts of great orators, that without a single exception they studied, read, practised, conversed, and meditated, not occasionally, but with daily regularity. Many of them were endowed with natural gifts, but they supplemented these with indefatigable work.
Well-known Speakers and Their Methods
Chalmers
There is a rugged type of speaker who transcends and seemingly defies all rules of oratory. Such a man was the great Scottish preacher Chalmers, who was without polished elocution, grace, or manner, but who through his intellectual power and moral earnestness thrilled all who heard him.
He read his sermons entirely from manuscripts, but it is evident from the effects of his preaching that he was not a slave to the written word as many such speakers have been. While he read, he retained much of his freedom of gesture and physical expression, doubtless due to familiarity with his subject and thorough preparation of his message.