Sam and Charlie in “Equal & Opposite”

Sam

I did what you asked because I had convinced myself that it was the right thing to do for Kirk. But the truth was, I was protecting the wrong person.

This isn't about protecting me.

Sam

No, I meant protecting me. I was protecting myself from your threat. And that's not the kind of doctor I am. That's not the kind of doctor that I want to be. You asked me if it was somebody I loved, what I would do, and... it would kill me, Charlie, but I wouldn't want to force someone to live a way that they couldn't live with, because that would be for me and not for them.