On what matters
Oxford, 2011
Abstract
On What Matters is a three-volume book of moral philosophy by Derek Parfit. The first two volumes were published in 2011 and the third in 2017. It is a follow-up to Parfit’s 1984 book Reasons and Persons.
Quotes from this work
Naturalism and Non-Cognitivism are both […] close to Nihilism. Normativity is either an illusion, or involves irreducibly normative facts.
On all plausible theories, everyone’s well-being consists at least in part in being happy, and avoiding suffering.
When I consider the parts of the past of which I have some knowledge, I am inclined to believe that, in Utilitarian hedonistic terms, the past has been worth it, since the sum of happiness has been greater than the sum of suffering.
Schopenhauer makes two curiously inconsistent claims about the wretchedness of human existence. We can object, he claims, both that our lives are filled with suffering which makes them worse than nothing, and that time passes so swiftly that we shall soon be dead. These are like Woody Allen’s two complaints about his hotel: ‘The food is terrible, and they serve such small portions!’
We live during the hinge of history. Given the scientific and technological discoveries of the last two centuries, the world has never changed as fast. We shall soon have even greater powers to transform, not only our surroundings, but ourselves and our successors. If we act wisely in the next few centuries, humanity will survive its most dangerous and decisive period. Our descendants could, if necessary, go elsewhere, spreading through this galaxy.
If we believe that there are some irreducibly normative truths, we might be believing what we ought to believe. If there are such truths, one of these truths would be that we ought to believe that there are such truths. If instead we believe that there are no such truths, we could not be believing what we ought to believe. If there were no such truths, there would be nothing that we ought to believe.
Why ought I to do what I know that I ought to do?
[…] I might ask [this] if I knew that I ought to do something, but I didn’t know, or had forgotten, what made this true. Such cases raise no puzzle. Suppose next that, though I know both that and why I ought to do something, I ask why I ought to do this thing. The only puzzle here would be why I asked this question. When we know why something is true, we don’t need to ask why this thing is true.