- [last lines]
- Gordon Zellaby: [voice over] A brick wall... a brick wall... I must think of a brick wall... a brick wall... I must think of a brick wall... a brick wall... brick wall... I must think of a brick wall... It's almost half past eight... brick wall... only a few seconds more... brick wall... brick wall... brick wall... nearly over... a brick wall...
- Alan Bernard: People, especially children, aren't measured by their IQ. What's important about them is whether they're good or bad, and these children are bad.
- Gordon Zellaby: But they are children, and children are not born with a sense of moral values, they have to be taught. With their intellect that should be simple.
- Alan Bernard: Intellect. Intellect? That's all you care about. What if you can't teach them? What if you can't put the brake of morals on them?
- Gordon Zellaby: First we must try.
- Alan Bernard: You're blinded by the vision of intellect. You see David as another Einstein.
- Gordon Zellaby: Potentially greater.
- Alan Bernard: Solving the riddle of the universe! Your son, David!
- Gordon Zellaby: Anthea's son. I have no proof that he's mine.
- [first lines]
- Gordon Zellaby: [on telephone] Good morning. Uh, would you get me Major Bernard at his Whitehall number? Thank you.