Wanna big think?

In attempt to steer this in a certain direction I'll say this.. Most people want to be happy?  Some years ago, my Mom said that the problems of the world revolve around money, sex and religion.  How sure are you that you're looking for happiness in the right place?  It seems logical to me to think that if everyone was selfish there would be little true happiness? 

What do you know?

What don't know?

If you want to get really technical.. How do you know?  How don't you know?  and.. what is knowing?