Abstract: According to ethical literary criticism, every type of literature has its text. The original definition of oral literature refers to the literature disseminated orally. Before the dissemination, the text of oral literature is stored in human brain, which is termed as “brain text.” Brain text is the textual form used before writing symbols are created and applied to recording information, and it still exists after the birth of writing symbols. Other types of texts are written text and electronic text. Brain text consists of brain concepts, which, by the different sources, can be divided into objective concepts and abstractive concepts. Brain concepts are tools for thinking while thought comes from thinking by understanding and application of brain concepts. Brain text is the carrier of thought. The termination of the synthesis of brain concepts signifies the completion of thinking, which produces thoughts to form brain text. Brain text determines thinking and behavioral patterns that not only communicate and spread information, but also decide man's ideas, thoughts, judgments, choices, actions and emotions. Brain text is also a deciding factor of man's lifestyle and moral behaviors. The nature of person's brain text determines his thinking and action, and most importantly determines who he is.

Key words: ethical literary criticism, oral literature, brain text, brain concepts