If it's okay to enrich ourselves by denying foreigners the right to earn a living, why shouldn't we enrich ourselves by invading peaceful countries and seizing their assets? Most of us don't think that's a good idea, and not just because it might backfire. We don't think it's a good idea because we believe human beings have human rights, whatever their colour and wherever they live. Stealing assets is wrong, and so is stealing the right to earn a living, no matter where the victim was born.
Steven E. Landsburg
economics, free-trade, morality, xenophobia