No God = No Purpose

The resolution of this debate is simple. The affirmative must argue that an absence of God in one's life ultimately means that one does not have a purpose. The negative must refute the affirmative. Now, I personally do not feel the need to define God, purpose, etc. My opponent has made it pretty clear that he does not care too much for definitions and would rather argue based on belief alone. I shall ask no questions. The guidelines of this debate are clear as well. Instead of refuting every little quote made by my opponent, I shall outline the one gargantuan fallacy my opponent has centered the argument upon. Let's say one's purpose in life is to become wealthy. After one has accumulated this wealth, who is to say that he has no purpose after that? Ever heard of philanthropy? One's purpose could easily be to generate monetary wealth, and after this achievement, spend the rest of life's duration in donating and volunteering in various fields of interest. What if one's purpose in life is to reject God? All one wants to do is ignore any concept of God or religion for an entire lifespan. This is still a purpose that exists without God. What is the meaning of life? What is our purpose? These questions are completely subjective; consequently, they are up to the individual. A scientist has a purpose of discovering a certain medical cure. This is not his only purpose in life. He wants to be a committed father, a loving husband, and a well-disciplined son. He may not achieve success in the occupational world, but he still succeeds in his familial duties. He has never believed in God, and never will. How can we say that he has no purpose in life? Let's say the same scientist is able to discover a medical cure. Great! He has served an even higher purpose in society! Maybe after this scientific advancement, other cures can be discovered as well. Manifold purposes! Long-term goals and short-term goals also come into play. Humans usually never have one sole purpose on this earth. If we are talking about life-long purposes, which I believe you are, I have already refuted your points. Why do you need a God to give you a purpose? Our life has purpose and meaning because it is our duty to praise God? Must we praise our parents since they are our Creators as well? What if I have neither a mother nor father in this world; they both died while I was an infant. I never have foster parents because I am stuck in an orphanage. Must I have no purpose because I have no parents to honor or people to care for? On the contrary, my darling. I will define my own purpose in life. I can make my own purpose of doing nothing in this world. I can make my own purpose of becoming a super-star athlete. Even if these "purposes" and goals are not met, it still does not mean that I have failed in my purpose. One purpose is merely the tree that branches off into plausibly thousands of other meanings. What about all of the atheists on this site? They have no purpose? Think of this selfishly. They have the purpose of sharpening your mind, making you challenge your beliefs, and strengthening your own spirituality. It's all based on how you look at it. I have successfully refuted my opponent. Thank you.