Martin Luther and John Calvin advocated the wholesale murder of heretics, apostates, Jews, and witches.

I think there are universal principles that we should want to understand, but that are not necessarily good for us. We could recognise universal propensities which current cultures can't fully eradicate, which we would want to eradicate if we could. Let's say, a tendency for tribal violence. Or racism.

Water is two parts hydrogen and one part oxygen. What if someone says, “Well, that’s not how I choose to think about water.”? All we can do is appeal to scientific values. And if he doesn’t share those values, the conversation is over. If someone doesn’t value evidence, what evidence are you going to provide to prove they should value it? If someone doesn’t value logic, what logical argument could you provide to show the importance of logic?

In my own case, the most inflammatory statements I have ever made are ones that I have written and remain willing to defend.

Some propositions are so dangerous that it may even be ethical to kill people for believing them.

It is terrible that we all die and lose everything we love; it is doubly terrible that so many human beings suffer needlessly while alive. That so much of this suffering can be directly attributed to religion—to religious hatreds, religious wars, religious delusions and religious diversions of scarce resources—is what makes atheism a moral and intellectual necessity.

Any conception of human well-being you could plausibly have, the Taliban patently fails to maximize it.