"I'm not here to discuss the past... I'm here to be positive"

Mark McGwire's quote recommends that he is not thinking about house on the past, however rather is concentrated on looking ahead and being positive. This might be interpreted as a sign of his maturity and growth, as he is selecting to concentrate on the present and future instead of the past. It could also be seen as an indication of his strength and determination, as he is selecting to stay positive regardless of any troubles he might have faced in the past. Additionally, it could be seen as a sign of his dedication to his goals, as he is choosing to remain focused on what he can do in the present and future to attain them. Ultimately, Mark McGwire's quote is a pointer to stay focused on today and future, and to stay favorable in spite of any challenges that might develop.