--- In norse_course@yahoogroups.com, Joshua Tenpenny <josh@...>
wrote:

> I feel bad asking, but I'm just starting out with Old Norse, and a
> friend asked me how to say "know thyself". It'll be ages till I

really

> get much beyond "Óláfr heitir konungr. Hann á brand." so I was

wondering

> if anyone could help me out.
>
> Thanks,
>
> -- Joshua

How about:

vita sjálfur