[Cornbread]

Hello all, this is my first post here. I love this forum, have been lurking and learning for quite some time, but have a few questions. I am an inexperienced web master....web rookie would be a better description than master, but any way, when I create a new page on my web site, I use a dynamic web template (Master page) and just duplicate the same page, this saves a lot of work when adding new pages, but I am only able to change the title of each page, so my meta description is all the same for all my pages. So should I just leave the meta description blank on my template and let the search engine discover it's own description?