Frederick P. Brooks, Jr.

The fundamental problem with program maintenance is that fixing a defect has a substantial chance of introducing another.

Adding manpower to a late software project makes it later.

Systematically identity top designers as early as possible. The best are often not the most experienced.

There is no single development, in either technology or management technique, which by itself promises even one order-of-magnitude improvement within a decade in productivity, in reliability, in simplicity.

How does a project get to be a year late? One day at a time.