Experience is inevitable, learning is not.
Experience is knowing what happened, while learning is knowing why it happened. Therefore, learning is not automatic. It requires an examination of our experience.
We may easily fall into the trap that we thought we learned something, but the fact was we only experienced something without learning anything. We have to always keep in mind that just because we're experiencing, doesn't mean we're learning.
This also reminds me that, for a teacher, you think you are teaching doesn't mean your students are actually learning. Teachers must focus on students’ learning, not their teaching. In this case, there's always a huge difference between a teacher's intention and students' outcome.