**Modes of Thought**

**Mysticism**

**The different kinds of thought**

Well, then, where are we? The promise early in the First Part that we would discuss what it meant to be a being who had conscious factual knowledge has been in part redeemed; in the fourth chapter of the fourth section of the third part 3.4.4 we saw what this implied for the life of the human being.

But we have still not discussed the different *types* of factual knowledge we have, and how this information is arranged so
that we can derive new relations from those we have already seen; and that is what this part is about.

This part really has two aspects: the different *avenues* through which we get information (distinguishing mysticism,
perceptual experience, and esthetic knowledge) and various ways in which we *arrange* this information so as to understand
new facts based on it.

This latter, of course, is called *reasoning,* and the rules for arranging data so that new facts emerge is called a *logic.* What
is ordinarily called "logic" or "formal logic" is actually the logic of *statements,* or linguistic expressions of perceptually
based facts; but there are many other logics--in fact, there is a unique logic, really, for every discipline that deals in any
kind of factual information. Insofar as this information is translatable into perceptually based factual statements, then the
laws of formal logic apply; but each discipline has its own special rules for arranging data, and it does not follow that the
logic of the statements that *describe* what it is doing is the same as the logic of *how it is actually handling the information.*

That is, I don't think that mathematics is a kind of subset of formal logic, any more than the logic of physics is a subset of mathematics, even though physics uses mathematics and mathematics uses statements. I think that people most often misunderstand a discipline, in fact, when they try to translate its logic into a different kind of logic that they are familiar with--which is one reason, I suspect, why so many have difficulty with mathematics. Actually, if a person can grasp what the logic is of the particular discipline he is studying, he can know more of it faster than the person who knows many many more of the details. But I may be saying this, of course, may be because I know so few of the details about anything.

In any case, in subsequent sections, we will see a little bit of certain classes of logics.

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