There are various forms of thinking:

Reflex, subconscious thinking. This lets us performs the natural functions necessary for getting on with life.
Such thinking exists at various levels:

- natural functions such as breathing, sleeping and walking.
- remembering names, making a cup of tea, behaving socially.
- learning to do more complex tasks
- creative thought

The first three levels may be termed 'passive thinking'.

It is the last and most difficult type of thinking that we consider here. One might think that it is impossible to teach creativity but with special techniques this is not so.

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