First 2 sentences: "The first thing that you should know is that learning a functional language is not so simple as just learn a new dialect, the way of thinki

First 2 sentences: "The first thing that you should know is that learning a functional language is not so simple as just learn a new dialect, the way of thinking and solving problems going to change dramatically. The imperative paradigm solves problems using a sequence of statements and commands which modify the state to reach a specific goal when the functional approach minimizes the “moving parts” through immutability, describing programs as expressions and transformations." Uh, both of those sentences are broken, in more than one way. I stopped there. Why should I bother, when the author didn't?