Hope it is not too late to answer your question, here you go:
Joseph Joubert believed the purpose of argument or discussion should not be to defeat the opposing viewpoint, but to make progress in understanding and finding solutions to the issue at hand. Joubert believes when people focus on winning and argument, rather than understanding the opposing side, they are less likely to find common ground or come to a resolution. I agree with Joubert's position as I believe discussions and arguments should be a means to an end, rather than an end itself. It is important to approach discussions with an open mind and a willingness to listen. An open mind allows for learning from others and making progress towards a common goal.