saying (noun)

1. In the famous novel 'To Kill a Mockingbird', the saying 'You never really understand a person until you consider things from his point of view' is repeatedly used.

2. The painting 'The Scream' by Edvard Munch is often accompanied by the saying 'I felt a great disturbance in the air, as if millions of voices suddenly cried out in terror'.

3. In the science fiction series 'Star Trek', the saying 'Live long and prosper' is commonly used by the character Spock.

4. In the popular anime 'Naruto', the saying 'Believe it!' is frequently used by the main character Naruto Uzumaki.