'Why? Why this funny phenomena that anything in nature seems to come in 3 so called "families"? Small, medium, large, why are there three colors of quarks, there are lots of questions. Why questions, questions that typically a child would ask. And we try to figure out whether this fits in a grander pattern, so if you start to re arrange the pieces of the puzzle, you can re arrange them in symmetric patterns which seem to suggest that this is just part of a bigger story there are bigger symmetries here that we cant see in nature but are perhaps, behind the physical phenomena, that we see.'