"The statement and the statement is one of the greatest books of Al -Jahiz, and it follows the book of animal in terms of size and more than his books. He transforms a philosophical direction. It is not limited to the animal book on animal news, characteristics and nature, but rather addresses philosophical topics such as cumin and generation, jewels and symptoms, and the indivisible part, Al Majusia and Agency etc. , Rather, he tries to lay the foundations of the science of statement and the philosophy of language. "