In his Appendix, Orwell explains the syntactical arrangement and the etymology of the Newspeak. A living language, such as English, one that has the capability of diverse expression, has the tendency to gain words and therefore broaden the awareness and knowledge of its speakers. Newspeak, on the other hand, loses words, by removing words that represent opposing concepts. Therefore, for example, because the word "good" presumes the opposite of "bad," the word "bad" is unnecessary. Similarly, all degrees of "goodness" can be expressed simply by adding standard prefixes and suffixes to this one root word: ungood (bad) and plusgood (very good) and doubleplusgood (wonderful). In so doing, Newspeak not only eliminates "unnecessary" words, but it also promotes a narrowing of thought and, therefore, awareness. The idea behind Newspeak is that, as language must become less expressive, the mind is more easily controlled. Through his creation and explanation of Newspeak, Orwell warns the reader that a government that creates the language and mandates how it is used can control the minds of its citizens.