Language's culture

I don't remember how I get interested in Haskell, but I remember that Why Haskell matters sealed the deal. There was a comparison of QuickSort implementations in C++ and Haskell. The Haskell version was so beautiful, so concise, that I had to learn it.

Even the first time I saw the comparison, I knew that it wasn't all fair. The algorithms weren't the same. The C++ version sorted an array in place. The Haskell acted upon lists. Of course, you can write a Haskell version that use mutable arrays. And you can, with some modification, implement the C++ version using lists, list concatenation and filter.

But why a C++ programmer would use a list structure when an array can do the work? Why a programmer would spend his time learning Haskell to then solve a problem imperatively?

Each language impose a culture, not only by forbidding thing, but by making other easy. Haskell not only gives you functions as firt-class citizens, but it makes so easy to compose, curry and uncurry them, that it is only natural to do it.

This composability is the real reason why to program in Haskell is a pleasure.