Although Si Modo posted a wondeful post about debate which was made sticky, there seems to be some confusion here about something important. That something is called Burden of Proof. If one were to make a certain claim, then it is up to that person to provide some sort of proof as to that claims validity. For example: If you claim the sky is green, then its up to you to post a picture of a green sky. Things are not and people do not behave the way you say they are simply because you say so. Proof of your argument is required. Either through critical thinking or through the presentation of data.