If you talk of anything you do not know, it is a matter for ridicule. If you talk about anything you have not experienced, it is reprehensible, for you are cheating your listeners. If you learn the art of public speaking and talk enchantingly using all the skills and frills recommended in the text-books or borrowed from others, it is cheating, nevertheless. Be sincere; be simple, be honest. That is the best recipe for successful speaking. (SSS Vol.7)

Public speaking should never be utilized for belittling or denigration of individuals. Anyone who listens to your speech should feel uplifted and inspired. Humour is all right only in small doses, but when you are talking about serious themes, you should not dilute your talk with cheap humour. Remember, words coming from heart and backed by action can transform others. (SSSm Vol.7, p. 62)