Is it really worth memorizing

I met my air hostess friend and I got to know that she has to memorize the two scripts she recites in the air-place; one, before taking off and another before landing. But because, in this case, this is all that they have to remember, it makes sense to memorize it as the customers are happy to see my beautiful air hostess friend addressing the passenger and not looking into a piece of paper.

But what about other professions or college where memorizing isn't really essential but the guy who has everything memorized is considered smarter. I am sure, most of you have experienced having to be with the guy who has everything (that you want to know) memorized; these guys are a great help because they are like a walking encyclopedia/guide, but apart from them providing you the memorized information, they don't provide anything that is smart. It is a smart solution to memorize and service people quickly (that's business), but memorizing in itself ins't really smart, that is, memorizing doesn't make you smart.

So, in general, in any given job, if we are told to memorize something just because it is considered a smart thing to do, ask yourself "is it really worth memorizing? or should I learn it *just* because it makes me smarter?". All in all, don't memorize unless its very necessary.