Samantha and Carrie in “Unfinished Business”

Samantha

[after learning Carrie had an affair with Big] It's all about the pheromones. We're all just animals reacting to each other's smell.

Carrie

I have a non-married, wonderful boyfriend with all his hair, waiting for me, who smells great.

Samantha

Don't beat yourself up. Aidan hasn't said "I love you" yet. Until he does, you're a free agent.

Carrie

What is that, "The Rules According to Samantha"?

Samantha

See? I'm more old-fashioned than you think.