'Everyone has a skill. What's yours?'

I respect the man who dedicates his time to one, and only one skill. He is so committed to excellence in that one area, enduring hardship for that one tiny moment of glory when he can shine. The impersonation of others, a little trill on the keyboard, or even the ability to make small talk with complete strangers sans a stutter. This sort of heroic (that's the word I was looking for) focus is seemingly beyond me.