The only true scarce resource is the human mind. Yet abortion is perhaps the most potent enemy of the human mind, since it destroys the one thing in life that cannot be replaced. Ecmomic analysis suggests that abortion policy will fail to serve the public iruerest due to public choice and knowledge problems, and it will adversely distort beneficial market phenomena like adoption services. Even if markets fail to produce zero unwanted pregnancies, it is not clear that abortion policy has avoided more tragic government failures. Theologians argue that killing innocent human beings is moral turpitude, since an irreplaceable soul is lost. But abortion is also a huge social loss in an economic sense. Society loses from legalized abortion by losing a mind and from the social costs that devolve from destroying that mind. Hence, classical liberals should embrace the recent pro-life momentum.