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

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

The hardest part of design ... is keeping features out.

Everything has a personality: everything sends an emotional signal. Even where this was not the intention of the designer, the people who view the website infer personalities and experience emotions. Bad websites have horrible personalities and instill horrid emotional states in their users, usually unwittingly. We need to design things-products, websites, services-to convey whatever personality and emotions are desired.

In my opinion, no single design is apt to be optimal for everyone.

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

Will robot teachers replace human teachers? No, but they can complement them. Moreover, the could be sufficient in situations where there is no alternative––to enable learning while traveling, or while in remote locations, or when one wishes to study a topic for which there is not easy access to teachers. Robot teachers will help make lifelong learning a practicality. They can make it possible to learn no matter where one is in the world, no matter the time of day. Learning should take place when it is needed, when the learner is interested, not according to some arbitrary, fixed schedule