It is OK not to know all things. The bigger question is do you really want to know somethings? Your answer to this question will determine whether you get to know or not. More pressing is to realize what you don’t know; not to argue from a position of knowledge but of curiosity; and to accept insights irrespective of the bearer of the knowledge. Knowledge is forever seeking to be found and used. And if you keep asking the right questions you will receive that which you ask for. You may need to let go of your ego along the way.