You know his philosophies better than I, Alfred Yun - my
   familiarity with him stems mostly from something controversial
   he said a few months back along with a rebuttal within a fellow
   professor's lecture from the same university. [they liked
   exchanging barbs in the hallways it seems].

   But I am curious:
   [1]https://en.wikipedia.org/wiki/Life_satisfaction
   In Singer's philosophy do you seek maximal happiness or maximal
   life satisfaction?

References

   Visible links
   1. https://en.wikipedia.org/wiki/Life_satisfaction