Person of Interest, Season 4

Root:
We understand the machine. We can understand Samaritan.

Harold Finch:
We don't understand the machine at all. Out of 43 versions, how many do you think there were that didn't try to either trick or kill me? One, and I could only bring it to heel by crippling it. I put the machine in chains, bereft of voice or memory. Now it has both, and it terrifies me.

Root:
You don't trust the god you made?

Harold Finch:
It's not a divinity. I programmed it to pursue objectives within a certain parameter, but it's grown out of my control. One day, to suit its own goals, it's possible that the machine will try to kill us. We are only numbers to it, code.

Root:
No, the machine cares about us.

Harold Finch:
If it fools you into thinking that you're special, that assumption may doom you.

Root:
You're wrong. She chose me. I will protect her, and you.

Harold Finch:
The second that a bullet enters your brain, the machine will cast you off and replace you. Don't tie your life to its whims. We cannot understand these intelligences. The best we can hope for is to survive them.

Root:
She loves us, Harold. She taught me to value life, but war requires sacrifice. I'm not lost. I'm scared. We're losing. But I know where I am and where I'm headed.

Harold Finch:
We have more to look forward to than death.

Root:
I hope so. But the life I've led, a good end would be a privilege.

Harold Finch:
It's not where you begin, it's where you end up. You're a brilliant woman, comrade and a friend.

Root:
If the worst comes to pass, if you could give Shaw a message -

Harold Finch:
I think she already knows.