And certain kinds of knowledge you can only find out one way - through pain.
I went on into the book; it was the kind of knowledge a master would need, all right.
The problem is how to put the two kinds of knowledge together.
I'd want to protect my children against that kind of knowledge.
Then this new kind of knowledge must have an additional quality?
It was the biggest kind of knowledge in the world.
This is not a kind of knowledge that comes easily.
At this point in the story, however, Jack has only one kind of knowledge.
It's the kind of knowledge that comes later, after things have turned out well.
Other possible views are these: Art can act as a means to some special kind of knowledge.