A teacher who is not dogmatic is simply a teacher who is not teaching.
Realizing our society as it is without theology dogmatically telling us how we should react to it and being humane toward that society that is all that we're sure of.
Bad religion is arrogant self-righteous dogmatic and intolerant. And so is bad science. But unlike religious fundamentalists scientific fundamentalists do not realize that their opinions are based on faith. They think they know the truth.
I do not purpose to discuss faith in its dogmatic sense today.
It frequently happens that two persons reasoning right on a mechanical subject think alike and invent the same thing without any communication with each other.