here's how to win any argument..

just shout really loudly.

or just keep repeating what you believe to be true and refuse to listen to any other point of view no matter how persuasive. do you think you can manage this? some people are terribly easily influenced. some are always more than willing to hear every side to every story. then there are some that don't like to win arguments, they like to win hearts - and that's a very different matter.