To help people (especially me) to choose stats for their characters and to decide what to practice,
I have prepared these two pages:

Skills and Spells - what the guildmasters say about them.

A small note for newbies:
Muscle means the strength stat in your info
Agility = Dexterity
Iron nerves = Will power
Health = Constitution
Eyesight = Perception (not what it says on info for vision! Don't ask me why not... I'm not sure how smell helps you dodge...)
Brilliant mind = Intelligence
Deep insight = Wisdom