So why do we need to study English Literature, instead of just reading it? Well, we don't need to study it, but when visiting a country for the first time it can help to have books by people who have been there before by our side.
When we start to read literature, particularly older works, we have to accept that we are not going to get the instant gratification that we have become used to from popular entertainment. We have to make an effort to accommodate to the writer's use of language, and to appreciate the ideas he is offering. Critics can help us make that transition, and can help fill out our understanding by telling us something about the social climate in which a work was written, or about the personal circumstances of the author while he was writing it.
We are not going to enjoy every literary work, and there may be times when we find reading a critic is more interesting than reading the actual work. Reading the work of a good critic can be edifying in itself. Making the effort to shape our own thoughts into an essay is also an edifying experience, and just as good literature lasts, so do the personal benefits that we gain from studying it.
Whether we choose to study it or read it for pleasure, when we look back over our literature we are looking back over incredible richness. Not just museum pieces, but living works which we can buy in bookshops, borrow from the library, or download from the internet and read today, right now.