The fifth element of the Agile Manifesto
Gojko Adzic – The fifth element of the Agile Manifesto:
"Martin [Fowler] then talked about Ignaz Semmelweis, a hospital administrator in 19th century Vienna who discovered that the mortality rate in a maternity clinic could be drastically cut by making doctors wash their hands when moving between the autopsy ward and the maternity ward. Semmelweis met with stiff resistance, including the claim that doctors had no time to wash their hands, according to the talk.
[…] Drawing parallels between that story and software development, Martin asked programmers to “wash their hands” and write clean code, not giving in to time pressures or claiming that they have no time for that or that they will not be allowed to do that."