“Cathy did not forget her lies, and she developed the most effective method of lying. She stayed close enough to the truth so that one could never be sure. She knew two other methods also––either to interlard her lies with truth or to tell a truth as though it were a lie. If one is accused of a lie and it turns out to be the truth, there is a backlog that will last a long time and protect a number of untruths.”

“Cathy's lies were never innocent. Their purpose was to escape punishment, or work, or responsibility, and they were used for profit. Most liars are tripped up either because they forget what they have told or because the lie is suddenly faced with an incontrovertible truth. But Cathy did not forget her lies, and she developed the most effective method of lying. She stayed close enough to the truth so that one could never be sure. She knew two other methods also -- either to interlard her lies with truth or to tell a truth as though it were a lie. If one is accused of a lie and it turns out to be the truth, there is a backlog that will last a long time and protect a number of untruths.”

“But an Adrian also knew that an Adrian's lies were real: they were lived and felt and acted out as thoroughly as another man's truths - if other men had truths - and he believed it possible that this last lie might see him through to the grave.”

“Logic!" said the Professor half to himself. "Why don't they teach logic at these schools? There are only three possibilities. Either your sister is telling lies, or she is mad, or she istelling the truth. You know she doesn't tell lies and it is obvious that she is not mad. For the moment then and unless any further evidence turns up, we must assume that she is telling the truth.”

“Lyra learns to her great cost that fantasy isn’t enough. She has been lying all her life, telling stories to people, making up fantasies, and suddenly she comes to a point where that’s not enough. All she can do is tell the truth. She tells the truth about her childhood, about the experiences she had in Oxford, and that is what saves her. True experience, not fantasy - reality, not lies - is what saves us in the end.”

“The truth about our lie. The truth about our lie? Or was it a lie about the truth? Truth and lies. Lies and Truths.Lielielielielie. Truthtruthtruththruthtruth.”