"That is the seduction"

I'm watching last night's The Daily Show, and Neil DeGrasse Tyson is on. And he just nailed it.

Jon asked him: "Isn't that the trouble with your job, the not knowing?"

And his answer: "That's not the trouble - that is the seduction."

And then a bit later he says: "You carve through what is known and you come to this precipice between what is known and the unknown, and that's where the research scientist lives. And that is what excites a person and makes you rush to work every day."

And then: "You keep pushing the boundaries back and you reach the ignorance that attracts us all."