Rule of thumb: if you think something is clever and sophisticated beware-it is probably self-indulgence.

When you have trouble with things—whether it's figuring out whether to push or pull a door or the arbitrary vagaries of the modern computer and electronics industries—it's not your fault. Don't blame yourself: blame the designer.

A challenge to the designers of the world: Make signs unnecessary.

Readers always seem to think that the author has some control over the design of their books.

Having the best product means nothing if the people won't buy it.

Simplification is as much in the mind as it is in the device.

Scientists are always skeptics.