Sense data are much more controversial than qualia, because they are associated with a controversial theory of perception - that one perceives the world by perceiving one's sense-data, or something like that.
David ChalmersThere's certainly nothing original about the observation that conscious experience poses a hard problem.
David ChalmersI had the idea that it would be wonderful to be a physicist or a mathematician maybe 500 years ago around the time of Newton when there were really fundamental things just lying around to be discovered.
David ChalmersStudying consciousness tells us more about how the world is fundamentally strange. I think we have a few revolutions to go yet before we get to the bottom of it.
David Chalmers