THE PARTY LINE A party line is a fixed idea, pet theory, or other philosophical vanity that when confronted by evidence or reason that it is wrong, over rules that evidence or reason. People may be stuck in one or more party lines. The core party line is the perfect certainty that perfect certainty is impossible, useless, unimportant, undesirable or dangerous. We call this 'mind broke'. Perfect certainty of uncertainty is the beginning of personal integrity. Homer Wilson Smith