“You are wrong, Harold. You are not interchangeable. I failed to save Sameen. I will not fail you now.” - The Machine

“Men have gazed at the stars for millennia and wondered whether there was a deity up there, silently directing their fates. Today, for the first time, they’ll be right. And the world will be an undeniably better place.” - John Greer

“Being missed means you meant something to people while you were here.” - Joss Carter

“It’s not paranoia if they’re really after you.” - Harold Finch

“The Machine and I couldn’t save the world. We had to settle for protecting the seven people that might be able to take it back. so we gave Samaritan a blind spot. Seven key servers that hard-codes it to ignore seven carefully crafted new identities. When the whole world is watched, filed, indexed, numbered, the only way to disappear is to appear, hiding our true identities inside a seemingly ordinary life. You’re not a free man anymore, Harold. You’re just a number. We have to become these people now. And if we don’t, they’ll find us and they’ll kill us. I’m sorry Harold. I know it’s not enough. A lot of people are going to die. People that might have been able to help. Everything is changing. I don’t know if it’ll ever get better, but it’s going to get worse. But The Machine asked me to tell you something before we part. You once told John that the whole point of Pandora’s Box is that, once you open it, you can’t close it again. She wanted me to remind you of how the story ends. When everything has happened, when the worst has passed, there’s still one thing left in Pandora’s Box: hope.” - Root

“That's my number for your boss when he's ready to talk. Or I can keep kicking his ass from a distance. Whatever he prefers.” - John Reese

“The world is a violent place, Harold. It always will be. Best we can hope to do while we're here is protect those closest to us.” - Carl Elias 

“Everything slides towards chaos. Your creation– it brings us poor souls a cupful of order. Your child is a dancing star.” / “It’s not my child. It’s a machine.” / “A false dichotomy– it’s all electricity. Does it make you laugh? Does it make you weep? / “Yes.” / “What’s more human?” - Arthur Claypool/Harold Finch