Erudition

 is a type of Advancement that can increase Reason.

Uses

 * Study two Erudition cards together to obtain a Reason card along with Skill: Scholarship card. This can only be done once.
 * Study two Erudition cards together to obtain Erudition: a Lesson Learnt.
 * Erudition can be required to solve Knowledge challenge when upgrading Lore fragments.

Uses

 * Study with your Scholarship skill to improve it and gain a Reason card. This can be done three times, requiring two Lesson Learnt cards, then three, and finally four plus a Lore card of the appropriate aspect.