When you put up an idea which I know is wrong and believe profoundly to be wrong and will do us harm, I must crush it. I don’t crush you, I crush your idea. I mean, if I’m wrong then my ideas deserve to be crushed. Maybe ‘crush’ is a harsh word, but this is a harsh world. It is a contest of whose idea is right because if it is wrong, we are going to do harm to many people.