Merlyn and Moira in “Unfinished Business”

It's done.

Moira

And he won't be harmed?

Nor will he ever discover your involvement; you have my word.

Moira

Forgive me if I don't find that comforting.

You were warned, Moira. I told you to get Walter under control, and you couldn't. Steps had to be taken.

Moira

That's what you said to justify Robert's murder. And you wonder why I don't trust you.

Quite a bit of judgment coming from a woman who had her son kidnapped and tortured.

Moira

To prove to you that Oliver didn't know anything. And what does it matter now? What's done's done!

No, Moira. It's just beginning. In six months, the organization's vision of what this city should be will be complete.

Moira

And you won't feel a thing, will you? Thousands of innocent people will be dead and you'll feel nothing.

That's not true. I'll feel a sense of accomplishment. And you'll have Walter back.