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

When communicating results to non-technical types there is nothing better than a clear visualization to make your point.

An approximate answer to the right problem is worth a good deal more than an exact answer to an approximate problem.

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

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.

Far better an approximate answer to the right question, which is often vague, than the exact answer to the wrong question, which can always be made precise.

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