1.  Four simple things, for example, can be combined in different ways to make twenty-four different complex things.

2.  Saying complex things forces you away from the protected Syntax of simple sentences.

3.  The body is a complex thing with many constituent parts.

4.  So, what is a complex thing?

5.  The first point that might occur to us, as a necessary attribute of a complex thing, is that it has a heterogeneous structure.

6.  We have seen what we are going to mean by a complex thing.

7.  If there is a complex thing that we do not yet understand, we can come to understand it in terms of simpler parts that we do already understand.

8.  Atkins assumes the evolution of complex things -- the subject matter of this book -- to be inevitable once the appropriate physical conditions have been set up.

9.  Atkins says that elephants and complex things do not need any explanation.

10.  My task is to explain elephants, and the world of complex things, in terms of the simple things that physicists either understand, or are working on.