Goliath wishes there had been more Vikings like Hiccup and fewer Vikings like . . . the rest of the Vikings.

Yeah.

He encourages Hiccup's use of the castle's library and his interest in expanding his worldview through reading. He'd sort of like to keep talking to the kid, maybe encourage him to read some philosophy, have some conversations about starting to think about the process of thinking about things . . . or will when he's in more of a state of mind to think about emotionally and intellectually investing himself in an individual person again.