
... The perspective on ourselves that we get when we take the point of view of the universe also yields as much objectivity as we need if we are to find a cause that is worthwhile in a way that is independent of our own desires. The most obvious such cause is the reduction of pain and suffering, wherever it is to be found.
p. 238 http://books.google.com/books?id=BoDMBgAAQBAJ&pg=PT238
Writings on an Ethical Life (2000)