We often admire those who stand resolutely and uncompromisingly for their beliefs. No doubt this is good an admirable at times. But often, what requires more courage, and is much less recognized, is being willing to change your mind, admit that you were wrong, and argue for a new position.
The flip side, while less common to recognize, is just as dangerous and maybe even more prevalent. That is having no real opinions and taking a stand on nothing.
It is hard to make a firm, public stand for something only then to "flip-flop." To protect ourselves we choose one side or the other and often deride those in the middle.
But we should stand in the middle. Our opinions will be tested by fire and eventually we'll have better ones. We'll have right opinions that we truly believe because we've stood on both sides of the argument.