"Proofs are more important than memorizing a formula and forgetting it after a couple of month." I didn't go to Berkeley, but I had exams like this - you could

"Proofs are more important than memorizing a formula and forgetting it after a couple of month." I didn't go to Berkeley, but I had exams like this - you could pass them without actually understanding the material by memorising everything in sight. Quoting a proof doesn't show that you have any in-depth grasp of the concepts, that you can actually apply them to a problem you haven't seen before.