I have never felt the need to prove the existence of God. Nor have I ever had the need to have it proven to me. Although I have read some very good books on apologetics. (I know I spelled that wrong but I just don't want to look up the word right now...) What I have is my personal testimony...my own personal experience with God, and I feel that that is more than enough for me. Life itself can do more to change a person's mind about God than any amount of words.