http://www.youtube.com/watch?v=5VMu14mBXAs

He said the following "disclaimer" of sorts right before a lecture of our current knowledge of quantum physics (as of 1979). It seems like a response from all the queries about stuff that we can't explan yet, like "why do electrons and protons have different masses and charges?" etc. We don't know, but that's what we see every time we look at them, so we just roll with it.

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Then there's a saying that you don't understand it meaning "I don't believe it, it's too crazy, it's the kind of thing.. I'm just not going to accept it."

The other parts, well.. This time I hope you'll come along with me, and you'll have to accept it because it's the way nature works. If you want to know the way nature works -- we looked at it carefully, and that's the way it looks! If you don't like it, go somewhere else.. to another universe where the rules are simpler, philosophically more pleasing, more psychologically easy.

I can't help it, okay! If I'm going to tell you honestly what the world looks like to human beings who have struggled as hard as they can to understand it, I can only tell you what it looks like. And I cannot make it any-- I'm not going to do this: I'm not going to simplify it. I'm not going to fake it. I'm not going to tell you it's something like a ball bearing on a string. It isn't. So I'm going to tell you what it really is like, and if you don't like it, that's too bad!!