"Frisk. Why would you ever climb a mountain like that? Was it foolishness? Was it fate? Or was it... Because you...? Well... Only you know the answer, don't you...?
I know why Seba climbed the mountain. It wasn't for a very happy reason. Frisk. I'll be honest with you. Seba hated humanity. Why he did, he never talked about it. But he felt very strongly about that. [...] In the future, if you see me... Don't think of it as me, OK? I just want you to remember me like this. Someone that was your friend for a little while. Oh, and Frisk... Be careful in the outside world, OK? Despite what everyone thinks, it's not as nice as it is here. There are a lot of Floweys out there. And not everything can be resolved by just being nice.
Frisk... Don't kill, and don't be killed, alright?
That's the best you can strive for."