So what does a good teacher do? Create tension - but just the right amount.

Technology usually provides a series of tradeoffs. Each asset is offset by a deficit...A major problem occurs when those who suffer from technology's defecits and those who benefit are not the same people.

A big ethical question is what happens after people stop using the device. Does it degrade the environment? Could it have been designed so it would actually be good for the environment?

Knowing how people will use something is essential

Design is really an act of communication, which means having a deep understanding of the person with whom the designer is communicating.

Attractive things work better When you wash and wax a car, it drives better, doesn’t it? Or at least feels like it does.

Technology may change rapidly, but people change slowly. The principals [of design] come from understanding of people. They remain true forever.