He was speaking about how science can be used to answer moral questions.
He believes that we have the right to judge other cultures.
He assures us that is not only okay to say that a nation that doesn't allow women to vote or a culture that keeps its women "in cloth bags" and cuts out their clitorises is immoral, it is right for us to speak out against such practices.
And he teaches us how to justify our stand scientifically.
My first reaction was one of hope. "Maybe with a person like Sam Harris in the lead we are actually moving forward," I thought.
But something has been bothering me about the video and it grows with each passing day.
And it is the fact that he assumes we all have to be convinced of this and that we need to stand behind science.
Only men need to be convinced that it is right to speak against a culture that practices something like female genital mutilation.
That one complaint aside, I really enjoyed his talk.
He is a wonderful speaker and the video is not long.