Starting out, I bet I didn't get a lot of parts because of my strange voice. I'm not consciously thinking, 'Hey, sound like a squeaky dog toy mixed with a bagful of rusty nails.' It's just what my voice has done.
My thoughts are my company; I can bring them together, select them, detain them, dismiss them.
Faced with the choice between changing one's mind and proving that there is no need to do so, almost everyone gets busy on the proof.