Gumak the Uruk-hai can teach you any of these skills:
                   Sessions Knowledge Difficulty  Advice
bandage               7/ 7     46%    Easy        You know as much as I do
climb                 5/11     71%    Very easy   Learning more could help you
command               0/18      0%    Normal      Learn it or not, your choice
leadership            0/13      0%    Normal      Learn it or not, your choice
ride                  7/ 3     88%    Very easy   You should be teaching me!
swim                  7/ 3     83%    Very easy   You should be teaching me!
track                 0/27      0%    Normal      Learn it or not, your choice
wilderness            9/27     56%    Normal      Learning more could help you

The sage can teach you any of these spells:
                   Sessions Knowledge Difficulty  Advice
break door            0/14      0%    Normal      Really too inexperienced
create food           0/ 4      0%    Normal      Learn it or not, your choice
create water          0/ 4      0%    Normal      Learn it or not, your choice
cure blindness        0/ 8      0%    Normal      Takes some time to learn
cure light            6/12     34%    Easy        Hard to improve
darkness              0/ 8      0%    Normal      Really too inexperienced
detect poison         0/ 6      0%    Easy        Learn it or not, your choice
raise dead            0/26      0%    Hard        Really too inexperienced
strength              0/ 8      0%    Hard        You are too inexperienced
word of recall        0/17      0%    Very hard   You are too inexperienced