Therefore, burn the diskpacks.
http://c2.com/wiki/diskpack.jpg Alto with diskpacks.
The advice was given to the Smalltalk team on their completion of Smalltalk-78, the first really well engineered implementation of the language. (They didn't burn em, and Smalltalk evolution has stalled since then.)
See Early History Of Smalltalk for more details of the very interesting context in 1976 when Alan Kay most famously said this.
See original on c2.com 