Inception2010

[Ariadne approaches Cobb in the workshop]

Ariadne:
Are you going under by yourself?

Cobb:
No, I was just running some experiments. I didn't know anyone else was here.

Ariadne:
I was working on my totem, actually.

Cobb:
Here. [he offers his hand to take the chess piece, but Ariadne withdraws it] You're learning.

Ariadne:
An elegant solution for keeping track of reality. Was it your idea?

Cobb:
No, it was Mal's, actually. [showing his top] This one was hers. When it would spin in the dream it would never topple.