Good design is clear thinking made visible, bad design is stupidity made visible
If the statistics are boring, you've got the wrong numbers.
Graphical excellence is that which gives to the viewer the greatest number of ideas in the shortest time with the least ink in the smallest space.
There are only two industries that refer to their customers as 'users'.
The world is generally multivariate
In general, I think audiences are a lot smarter than people think. So, it's not "know your audience", it's "respect your audience, and really know your content".