George Carlin illustrates this in this example of reported speech: "I went to a bookstore and asked the saleswoman, 'Where's the self-help section?' She said if she told me, it would defeat the purpose."
To contrast with words spoken once, putting a reporting verb in the present tense is used to show an adage, something that someone has said in the past and continues to say or presently believes. For example: "She always says how he's not good enough for you."