Pro-life... no religion required

One need not believe in God, or the existence of a spiritual realm, to understand the simple fact that human life begins at fertilization.  One need not be religious to believe that "all human beings are equal in worth and dignity."  These two points are at the core of pro-life convictions.  Robert George makes these arguments (and more) with depth and crystal clarity in this article, where he answers questions from the questionable Douglas Kmiec (who calls himself pro-life, but vigorously supported decidedly non-pro-life Barack Obama).