You want to try and bring a character to life in an honest a way as you possibly can. It doesn't matter whether he's a doctor, an actor, a car salesman or a captain of a starship. If you can bring truth and honesty to that character, then your audience will believe you.
“For those who believe in God the matter is simpler still and clearly than anything else: because those who believe in God believe that God is the Creator of the whole Universe and there is nothing that does not come from Him.”
“We invoke the sacrifices of our fallen heroes in the abstract, but we seldom take time to thank them individually.”