I've heard it said that umpires are necessary evil. Well, we are necessary, but we are not evil. We are hard-working and dedicated people whose primary interest is to make sure the game is played fairly. We are the integrity of the game.
If you don't need umpires out there, and you can put robots out there, then why do we need ballplayers?
Umpires are necessary evils. That's just the nature of the beast. For years, people have looked on umpiring as a job they could get any postman to do.
Error is part of the game. I never, ever second-guessed myself on a call and don't believe good umpires ever should.
The one thing that all umpires have is pride, and if you don't have pride, you lose that edge.