- Dr. Walter Bishop: Curious minds often converge on the same idea. Newton and Leibnitz independently... without knowing each other, invented calculus.
- [to Joanne Ostler]
- Mitchell Loeb: Look around your house, your office, your kitchen... Numbers make everything work.
- Peter Bishop: The best lie, the one that's easiest to remember with consistency... is the one that's based on the truth.
- Dr. Walter Bishop: And you look different too, somehow. That smile. Have they altered your medication? Wouldn't surprise me. These medieval quacks are more proficient at phrenology than psychopharmacology
- Dashiell Kim: I miss your jokes, Walter.