This is his full dialogue:
>Hey there. Thought I'd take one last gander at this place.
>There were some old books I forgot... geh-heh.
>Y'know, it wasn't all written down quite right.
>...Our history.
>The pages changed, things got sanded down...
>...and important things were forgotten.
>...maybe on purpose.
>... I never hated humans.
>Some of my best war buddies were humans...
>'course, all of them are gone now. Long gone.
>When they sealed us away, I didn't resist, much.
>...the other side sacrificed a lot to get us down here.
>Rumor has it, it even used up all their magic.
>...not sure though. I wasn't there. Geheheh.
>Humans and Monsters weren't always all enemies.
>No one really wanted to fight in that war...
>...and the sides weren't really all that clear cut.
>When the barrier was made...
>Old friendships were broken. Old business partners, lost.
>...Even some married couples, were...
>I even knew one of the people doing the sealing. Heheh.
>Seein' them in that beautiful magician outfit, for the first time...
>For the last time, and at such a moment...
>...it felt strange, I tell ya. Geheheheh...
>But now, we're going back.
>...Even if humans accept us...
>Ya can't say everything will go smoothly.
>Asgore probably didn't believe that, either...
>...until he met you.
>...G'job, sprout. Geheheheheh!
I like this dialogue.