There comes a time where next to everyone will resort to techniques that enhance cognitive, mental including emotive, physical, and other capacities. When this has happened, if not before, the ban on doping in sport will have been lifted.

Different areas present us with possibilities to test different theories.

We own ourselves. This is the core of a libertarian theory of rights. But on this theory, while we are at liberty to kill ourselves (regardless of the consequences of others), we are not allowed to kill others, not even if this means that there we be fewer murders in the future, totally speaking.

Being a moral realist I see normative ethics as a search of the truth about our obligations and a search of explanation; the idea is that moral principles can help us to a moral explanation of our particular obligations.

One way of submitting your moral intuitions in relation to some issue to cognitive therapy is to learn more about how people in other cultures think about it.

There are some particular moral truths that I believe we have access to (such as the one not to inflict pain on a sentient being for no reason).

The best explanation why people agree is that they have converged on true answers.