Just read this great article by Marilyn Adamson who used to be a strong atheist, but now follows Christ.
Here she gives 6 reasons she believes God exists. Quite powerful.
She speaks from her heart, sharing some of what she went through before coming to Christ, and how she was drawn to Christ. I found it quite moving and encouraging as I consider those in my life who are "hard to reach".
I believe this article also honours our teaching topic science and faith which we did about a year ago.
Here's the link.