selflessness

Beowulf opens by telling us that he journeys to "destroy evil wherever it exists, not merely to protect his own people or is own interests."

Another example would be Beowulf's reason for traveling to help Hrothgar, the king of the Danes. Hrothgar had once helped his father, and Higlac could have sent anyone to return the favor. Beowulf offered his help, even though anyone could have been sent.

whats the rest of that quote?

and what did he offer to do?