thinking problems

Generalization - required for thinking
Use of language - required for thinking - Must learn to think without using language.

Definition of Thought vs. Meaning - need to figure this out.

Communication is the passing of meaning from one entity to another.
Meaning is distorted by language. But we need language to comprehend meaning. (If this is so, how can I possibly write about this subject?)

Need to establish categories of thought. Pscyhologists and cognitive scientists have probably already done this. (Look into this.)

What are the different kinds of thoughts at the lowest levels?
-questioning

If I think of an apple, what is that type of thinking called as opposed to questioning what is an apple?