You are a necessary evil whose orbit I can't seem to escape.

Catherine

Do we trust each other?

Mary

I'm sorry we've come to this.

Mary

If I die of boredom while hearing my people's grievances, am I playing into the queen's hands?

Bash

Duke of Guise: When you disarm, your opponent shoots you.
Mary: We're not at war.
Duke of Guise: Royals are always at war.

Mary: I'm sorry, I shouldn't have done that.
Bash: You're right, I should have.

You must separate yourself from this faith and you must do it immediately.

Greer

My dear, never give up a crown to anybody.

Catherine

If we die, it is at her hands. And if we live I will never forgive her for this.

Catherine

Francis: I know it's unfair. My mother was almost beheaded for infidelity while my father had every woman he wanted, but that is the way that it is, right or wrong. I remind you of this because I care for you.
Mary: Oh, is that caring? It sounds to me like a man trying to tighten his grip on a woman. Well understand if I don't stay to hear more.

An interesting choice. Assuming you let her know she has one.

Mary

You say that I can be free, open to another. But without you my heart is closed as tight as a fist.

Francis

Reign Quotes

Ruling requires that your hands be drenched in blood.

Catherine

I'm sorry we've come to this.

Mary