Right and wrong are not simply matters of evolutionary impacts and what is natural.

The mark of a mature, psychologically healthy mind is indeed the ability to live with uncertainty and ambiguity, but only as much as there really is. Uncertainty is no virtue when the facts are clear, and ambiguity is mere obfuscation when more precise terms are applicable.

Progress is more of a challenge for the cynic but also more important and urgent, since for the optimist things aren't that bad and are bound to get better anyway.

Some of my understanding of what philosophy and ethics is has changed very slowly. One thing that has changed is this for quite a long time I bought-into the idea that philosophy is basically about arguments. I'm increasingly of the view that it isn't. The most interesting things in philosophy aren't arguments. The thing that I think is underestimated is what I call a form of attending. I think that philosophy is at least as much about carefully attending to things as it is about the structure of arguments.

Philosophy has to be enquiring; it can take nothing on faith, and its methods are based not on the blind acceptance of authority, but on establishing truths by reason and argument.

If I hammer my own thumb while doing some DIY, it's not nice, but it's not the end of the world. To care obsessively about similar levels of discomfort in animals seems to be a case of mistaken moral priorities.

If we find it hard to believe that winning millions might not be so lucky after all, we just don't have a good enough imagination. If I fantasise about winning the lottery, it doesn't take long before all sorts of worrisome potential consequences occur to me.