This was never about winning, it’s just about surviving. The Machine and I couldn’t save the world, we had to settle for protecting these 7 people who might be able to take it back so we gave Samaritan a blind spot: 7 key servers that hard codes to ignore 7 carefully crafted new identities. When the whole world is watched, filed, indexed, numbered, the only way to disappear is to appear: hiding our true identity inside a seemingly ordinary life. You are not a free man any more, Harold. You are just a number. We have to become these people now, and if we don’t, they will find us and they will kill us. Sorry Harold. I know it’s not enough. A lot of people are gonna die. People who might have been able to help. Everything is changing. I don’t know if it will ever get better but it is going to get worse. But The Machine asked me to tell you something before we part - you once told John the whole point of Pandora’s Box is that once you opened it, you can’t close it again. She wanted me to remind you how this story ends: when everything is over, when the worst has happened, there is still one thing left in Pandora’s Box: HOPE.
by Root (Person of Interest S3E23)