The Waterfall Model is wrong and harmful; we must outgrow it.

System debugging has always been a graveyard-shift occupation, like astronomy.

Observe that for the programmer, as for the chef, the urgency of the patron may govern the scheduled completion of the task, but it cannot govern the actual completion. An omelette, promised in two minutes, may appear to be progressing nicely. But when it has not set in two minutes, the customer has two choices - wait or eat it raw. Software customers have had the same choices.

A computer program is a message from a man to a machine. The rigidly marshaled syntax and the scrupulous definitions all exist to make intention clear to the dumb engine.

I am more convinced than ever. Conceptual integrity is central to product quality.

The hardest single part of building a software system is deciding precisely what to build.

Nine people can't make a baby in a month.