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If we want users to like our software we should design it to behave like a likeable person: respectful, generous and helpful. – Alan Cooper
No matter how beautiful, no matter how cool your interface, it would be better if there were less of it. – Alan Cooper
Define what the product will do before you design how the product will do it. – Alan Cooper
Design principle: Take things away until the design breaks, then put that last thing back in. – Alan Cooper