Someone
Adventurer
You can use the rules from the SRD:
A wizard can also add a spell to her book whenever she encounters one on a magic scroll or in another wizard’s spellbook. [...]
In most cases, wizards charge a fee for the privilege of copying spells from their spellbooks. This fee is usually equal to the spell’s level × 50 gp.
Yup, I can say with utmost certainty that having a Learner kicked out for not practising true magic fits in perfectly with the Academy's demeanour (heck, they don't even think sorcerers practise true magic)