If we are going to make a mark (key 21), it might as well be a meaningful one.

There is no data that can be displayed in a pie chart, that cannot be displayed BETTER in some other type of chart.

In a single sentence the moral is: admit that complexity always increases, first from the model you fit to the data, thence to the model you use to think about and plan about the experiment and its analysis, and thence to the true situation.

To be able to say that "if we change our point of view in the following way ... things are simpler" is always a gain.

Numerical quantities focus on expected values, graphical summaries on unexpected values.

The greatest value of a picture is when it forces us to notice what we never expected to see.

The combination of some data and an aching desire for an answer does not ensure that a reasonable answer can be extracted from a given body of data.