Just a quickie...

Neither books nor august persons are infallible authorities. All they offer are opinions, more or less well informed, more or less valuable, but nothing set in stone. Every opinion can be questioned, no matter how great the prestige of the person making the pronouncement. Indeed, my experience is that the best experts welcome intelligent questions and respond courteously. In the search for truth there is no question that is forbidden and no hard question that may be ducked.