Adding manpower to a late software project makes it later
Design work doesn't just satisfy requirements, it elicits them.
Scientists build to learn; Engineers learn to build.
A scientist builds in order to learn; an engineer learns in order to build.
We tend to blame the physical media for most of our implementation difficulties; for the media are not "ours" in the way the ideas are, and our pride colors our judgement.
Originality is no excuse for ignorance.