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

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

Be approximately right rather than exactly wrong.

The best thing about being a statistician is that you get to play in everyone's backyard.

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.

It's better to solve the right problem approximately than to solve the wrong problem exactly.

All we know about the world teaches us that the effects of A and B are always different-in some decimal place-for any A and B. Thus asking "are the effects different?" is foolish.