Not really in work as a job, these people inspired me rather in lifestyle and thinking: (these are not quotes!!)

Richard Stallman - you can't be sure the program isn't harmful unless you see and understand the code.

Linus Torvalds - doesn't matter if you like the person or not, let the code speak for him/her.

Raymond Hettinger - there are both stupid and smart people. It doesn't matter. What matters is asking the right questions and providing clean and explaining answers.