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

When a task cannot be partitioned because of sequential constraints, the application of more effort has no effect on the schedule. The bearing of a child takes nine months, no matter how many women are assigned.

Software and hardware design is less different than software designers think, but more different than hardware designers think.

Einstein repeatedly argued that there must be simplified explanations of nature, because God is not capricious or arbitrary. No such faith comforts the software engineer.

Improving your process won't move you from good to great design. It'll move you from bad to average.

Successful software always gets changed.

You can learn more from failure than success. In failure you're forced to find out what part did not work. But in success you can believe everything you did was great, when in fact some parts may not have worked at all. Failure forces you to face reality.