- Professor Harms: What laws have we broken?
- Detective William Murdoch: To start with, it appears that you have violated the laws of physics.
- Constable George Crabtree: [to Higgins] And you're wrong about Dr. Grace. She's a modern woman, and in the new century relationships will be defined by a meeting of the minds, and I, my friend, am a 20th Century man.
- Dr. Roberts: I've been diagnosed with Huntington's Chorea.
- Dr. Julia Ogden: The degenerative nerve condition?
- Dr. Roberts: It's inevitable. My father had it.
- Detective William Murdoch: [sympathetically] I'm terribly sorry.
- Dr. Roberts: [with resignation] Hmmm... One must play with the cards one is dealt.