Speaking in public is as difficult as singing or acting and it ought to have as careful rehearsals, even more careful, because one of the aims of the public speaker is to appear entirely spontaneous. The great speakers of Greece and Rome used to prepare an important speech as carefully as opera star nowadays studies a new role. After writing out a dozen times, they would deliver it before few trusted friends, critics and tutors repeating it again and again until they knew every syllable and gesture and yet the whole thing appeared not a highly elaborated product of art, but a genuine outpouring of real and overwhelming emotion. That is why we still study the speeches of men like Cicero. A single page of their speeches contains the result of more concentrated thought, active experience, intricate psychological knowledge and training in language than modern speakers can command in their whole life time.