The difference between science and religion is the difference between a willingness to dispassionately consider new evidence and new arguments, and a… - Sam Harris

One of the most pernicious effects of religion is that it tends to divorce morality from the reality of human and animal suffering. Religion allows people to imagine that their concerns are moral when they are not — that is, when they have nothing to do with suffering or its alleviation. Indeed, religion allows people to imagine that their concerns are moral when they are highly immoral — that is, when pressing these concerns inflicts unnecessary and appalling suffering on innocent human beings.

The truth that we must finally confront is that Islam contains specific notions of martyrdom and jihad that fully explain the character of Muslim violence.

You need an argument, and the nature of any argument is that its validity doesn't depend on who you are. [...] When talking about violence, again, the facts are whatever they are – how many people got shot, how many died, what was the color of their skin, who shot them, what was the color of their skin. Getting a handle on these facts does not require one to say, 'As a black man, I know x, y, and z .' The color of your skin simply isn't relevant information.

When talking about the data – that is, what is happening throughout a whole society – your life experience isn't relevant information. And the fact that you think it might be is a problem. [...] Now this isn't to say that a person's life experience is never relevant to a conversation [...] it can be used to establish certain kinds of facts. I mean, if someone says to you, 'Catholics don't believe in hell', it's perfectly valid to resort, 'Actually my mom is a Catholic, and she believes in hell'. Of course there's a larger question of what the Catholic doctrine actually is – but if a person is making a statement about a certain group of people and you are a member of the group, you might very well be in a position to falsify his claim on the basis of your experience.

But a person's identity and life experience often aren't relevant when talking about facts. And they're usually invoked in ways that are clearly fallacious.