To agile or not to agile?

Today I really feel the urge to quote what Uberto said in the JUG Milano mailing list - and forgive me if something gets lost in the translation process - the original had a deeper stroke on people's imagination.

"Blockheads, agile or not, will never produce good code, just as even if you can produce the best software in the world but you don't understand the domain your project is doomed: technical success is a foolish illusion."