A scientist builds in order to learn; an engineer learns in order to build.

Design work doesn't just satisfy requirements, it elicits them.

The boss must first distinguish between action information and status information. He must discipline himself not to act on problems his managers can solve, and never to act on problems when he is explicitly reviewing status.

Mediocre design provably wastes the world's resources, corrupts the environment, affects international competitiveness. Design is important.

But I will argue that knowing complete product requirements up front is a quite rare exception, not the norm.

Successful software always gets changed.

Men and months are interchangeable commodities only when a task can be partitioned among many workers with no communication among them.