1.  A basic economic assumption in a Market economy is the continual adjustment of supply and demand toward an equilibrium point.

2.  A brief review of the structure of sierra society will illustrate this point.

3.  A buyer for the long haul would not skate far past the optimal point and towards bankruptcy costs.

4.  A circle is a shape on which all points are equidistant from some point lying inside.

5.  A clear statement of the goal and scope of a research project is a useful reference point.

6.  A convenient notes section on each page points out major features encountered and emphasises detail occurring in the plate illustrated.

7.  A conventional lens maps each light ray to a particular point on an image plane.

8.  A crucial point about epidemics is that not all members of a given population behave in a uniform way.