What programming languages do you use? What numbers made you choose those ones? Maybe if you show me an example of some numbers I could help more.

I don't have the time to write up why I think Lisp is great, but you can find essays by many greater (and more famous) programmers than me such as Richard Stallman, Peter Norvig, Steve Yegge, Paul Graham et al. But really the only way is to learn it for yourself. There is a kind of enlightenment that comes with learning Lisp and I would recommend it to every programmer.