Good quotes on importance of good network addressing

[Pete Kruckenberg <pete () kruckenberg com>]

I'm doing a presentation and white paper to convince a bunch 
of people that network addressing is one of (if not the 
most) important aspect of network design and management. The 
goal is to convince them that we need a plan, which will 
probably require them to do some renumbering.

I'm looking for a couple of good quotes to include in the 
presentation. Anyone got some good ones from some 
Internet/network luminaries? Something to confirm the 
importance of a generally boring topic.

Thanks.
Pete.