Dungeons&D6:Intelligence
The Intelligence bonus is added to all roles that pertain to academic or esoteric knowledge, such as lores, reading ancient languages, and so forth.
Mages may learn up to Intelligence in spells throughout their careers.
All characters may learn up to Intelligence/2 skills. This limits the number of skills they may train in, but does not limit to the extent to which they can train them.
All characters may learn up to Intelligence/2 languages. Starting characters may start play with half this amount.