I was taught functional programming through SML in university two years ago. I have never had my brain twisted with so many interesting and clever concepts - it

I was taught functional programming through SML in university two years ago. I have never had my brain twisted with so many interesting and clever concepts - it was one of the most valuable semesters I had, and my favourite class. Go learn functional programming if you haven't, it will force you to look at problem with a new set of eyes!