Bildiğim kadarıyla, o iyi bir adam.
- He is, so far as I know, a good guy.
Bildiği kadarıyla işler yolunda gidiyordu.
- So far as he was concerned, things were going well.
insofar as (or that), to the extent that, to such an extent.
... As far as we know, no Chinese trader ever met a Roman. ...
... very chimneys unfold as far as the eye can see ...