The joy of solving a problem that nobody has solved before. Of course it's big and hard; if it weren't big and hard, somebody would've done it already! That, co

The joy of solving a problem that nobody has solved before. Of course it's big and hard; if it weren't big and hard, somebody would've done it already! That, combined with setting smaller, shorter-term sub-goals, so I can get a little bit of satisfaction as often as possible to overcome the occasional frustration.