SCP-3511 contains multiple ones, but the lines which had the biggest effect on me were from the first dialogue transcript.
Caller: No! I mean they literally couldn’t touch her. They’d get close and then they’d just… just stop. People got antsy and started fighting. Students in the hall gathered around to see what was going on. But after a few minutes, my kids just stood there and looked at her. I asked her to move but she looked at me and said “Notice me. I want to be here. I want to be seen. I want to be touched. So no, you move me.”
SCP-1342 will always punch right in the feels.
Before we emerged, the people who live on your planet crippled us. From the sky above, in bright blue flashes, our lives were ended. We do not know their reasons, nor do we know why their hand was stayed enough to forestall our extinction. But now we live on a dying world. Our children are sick. Our water is polluted. We cannot maintain our technology. We will not go on.
We could still hear your world, unknowing, uncaring. With what little power we had left, relativistic destruction could reduce your planet to ashes as it was forming. It is shaming, but we came so close. We hope you can understand why we thought what we did. But maybe, if we could change what happens, if we could destroy you, then you could save us.
But above all else, there is one thing you need to know.
From one maker of music to another, across all worlds, all times, no matter what you do or what you become: You are nothing less than beautiful.
/bawls quietly in a corner
348 always gets me. immediately comes to mind when anyone brings up emotional skips
Subject: 45-year-old male, afflicted with aches due to arthritis
Brief Background: Happily married, lives with wife and children. Visits father once a week, with family. Mother deceased.
Notes: Message appeared, I’m proud of you.
these aren't tears i'm just secreting liquid masculinity from my eyeballs
The final test in SCP-2295, an SCP about a healing bear, is a tear-jerker:
Subject: D-2723, 18 years old
Diagnosis: Cerebral hemorrhaging
Notes: SCP-2295 grasps various materials in its proximity in a distressed state for approximately one (1) minute. SCP-2295 then anomalously produces a ███████'s Dove Milk Chocolate King Size Candy Bar and offers it to subject. SCP-2295 spends rest of test embracing subject's lower right leg while anomalously producing a saline solution from its 'eyes'.
SCP-1364 has this line:
SCP-1364 starts to rub its eyes. Skin in contact with the tears begins to burn slightly. Hair begins to fall off.
Poor guy. :(
Only nerds have signatures
All I'm going to say is: I've been reading all of the stories put up in this discussion, and I'm starting to feel wibbly-wobbly inside.
Stop it, you guys. It's too early for this. I have things to do. ;_;
EDIT: Removed excerpt from tale Fear Alone when I realized this discussion referred to SCP articles, and not just any old tale.
I just remembered SCP-1281 and damn. It is really impactful, not only the message but the messenger too.
"…We are all small, and the universe is vast. But a universe with voices saying "I am here" is far greater than a universe silent. One voice is small, but the difference between zero and one is as great as one and infinity.
"We waited too long. Our voice is gone to echoes. Find others while there is still time. Make a chorus.
"And if this finds you too late, and your time is also passing, please send this message on, so the next voice can speak against the darkness."
SCP-1281: "Mission is done. Brain too hot. Cooling broken."
Dr. Bloom: "Harbinger, are you…"
SCP-1281: "Master?"
Dr. Bloom: "I… yes?"
SCP-1281: "Did I do well?"
Dr. Bloom: "…Yes, Harbinger. Well done."
SCP-1281: "Then I am well."
Can you… hear the waves coming in, red? That little hum and shake as it hits your ears? I can. And it's getting louder every time, and it hurts so bad. [Begins to sob quietly.] It hurts so bad.