Ten years have now passed since many of us first felt the jolt of history-when the second plane crashed into the South Tower of the World Trade Center. We knew from that moment that things can go terribly wrong in our world-not because life is unfair, or moral progress impossible, but because we have failed, generation after generation, to abolish the delusions of our ignorant ancestors.

The fact that my continuous and public rejection of Christianity does not worry me in the least should suggest to you just how inadequate I think your reasons for being a Christian are.

It is merely an accident of history that it is considered normal in our society to believe that the Creator of the universe can hear your thoughts while it is demonstrative of mental illness to believe that he is communicating with you by having the rain tap in Morse code on your bedroom window.

What would our world be like if we ceased to worry about 'right' and 'wrong,' or 'good' and 'evil,' and simply acted so as to maximize well-being, our own and that of others? Would we lose anything important?

You can learn something about a person by the company she keeps.

For nearly a century, the moral relativism of science has given faith-based religion--that great engine of ignorance and bigotry--a nearly uncontested claim to being the only universal framework for moral wisdom. As a result, the most powerful societies on early spend their time debating issues like gay marriage when they should be focused on problems like nuclear proliferation, genocide, energy security, climate change, poverty, and failing schools.

Each increment of knowledge imparted in this way is so satisfying-and one's ignorance at every stage so consequential-that the process of learning BJJ can become remarkably addictive. I have never experienced anything quite like it.