How can you know every thing
You can't. There is always more to learn and experience.
You can't. There too much to learn.
I don't think you can. In this big thing called "The Universe", there is always something new to find.
You can't know everything...
well even if you could theres always more things and ideas being created so...
Impossible. Sorry. :)
How boring that would be, to know everything! Nothing new to learn, ever. No thanks.
That's easy you can know everything simply by being my mother! She's a know it all, just ask her.
Well you can't really know everything but dedicating your time to studying you will be able to learn a lot.