Common Lisp changed the way I program because the macros open your eyes to a whole lot of code duplication that you can't avoid in other languages - this encour

Common Lisp changed the way I program because the macros open your eyes to a whole lot of code duplication that you can't avoid in other languages - this encouraged me to really work at those bits of code until they actually contain the bare minimum of boilerplate code possible. Haskell changed the way I program because laziness can allow you to express your code in much clearer and simpler ways - this encouraged me to use more memoization. Functional programming is definitely where we want to be in theory, so if practice permits, use it!