memorization...(has) a most salutary effect on learning ability
Like Bob I don't think memorization is bad, but it shouldn't be used to replaceunderstanding or creativity. They need to balance.
I saw a documentary of preshcool education in China. Four-year old children were painting beautiful, accurate paintings of flowers. But every painting was identical, in fact every brushstroke was identical. No blue horses or purple frogs.
You can't get anywhere without the basic memorizable knowledge. But without understanding and creativity you can't get anywhere new.