Dan Kaminski on Dan J. Bernstein being right on Source Port Randomization, versus Paul Vixie, in the recent DNS protocol bug:

There is a fantastic quote that guides a lot of the work I do:
Luck is the residue of design.

Excellent quote, I didn’t know it. One of those nuggets of wisdom I try to collect here. I see the quote as luck being a nice property of the “shape” of a well designed solution space.