Good design is clear thinking made visible, bad design is stupidity made visible

Confusion and clutter are failures of design, not attributes of information. And so the point is to find design strategies that reveal detail and complexity - rather than to fault the data for an excess of complication. Or, worse, to fault viewers for a lack of understanding.

An open mind but not an empty head.

I think it is important for software to avoiding imposing a cognitive style on workers and their work.

The minimum we should hope for with any display technology is that it should do no harm.

A metaphor for good information design is a map. Hold any diagram against a map and see how it compares.

Here's the general theory: To clarify, add detail. Imagine that. To clarify, add detail. And clutter and overload are not an attribute of information, they are failures of design. If the information is in chaos, don't start throwing out information, instead fix the design.