I read a post from re-minisce's blog where he quoted a question "What happens when there are no more questions?". And this is what I've replied in his comments:
if there are no more qns, that either means u already know everything (which i doubt is possible for anyone), or indicates a lack of interest in the subject matter.

like i've quoted before, there are no uninteresting things, only uninterested people. uninterested people have no more questions.

Me. I believe in asking.