We learn what we will teach; we teach what we need to learn. ~ Karen Casey, Daily Meditations for Practicing the Course

The way to learn material is not to listen
to an explanation. Nor is it to read a treatise
on the subject. Nor is it to learn by trial and error.
No, the way to master a subject is to learn
what you can then to explain to someone else
how to do it. We learn what we will teach.
Then we can teach what we need to learn.
How often have you suddenly listened
to words you are saying only to suddenly grasp
that what you say is precisely what you need
most to understand?