In his post “Thoughts on Developer Testing“, Jay Fields says something which we all need to remember every day (my emphasis):
“Unfortunately, you can’t write better software by blindly following dogma of ‘industry experts’.”
Just as “an eye for an eye” leaves everyone blind, staggering around in a changing environment with your eyes closed shut will not help you getting closer to any goal you might strive for.
A mind is like a parachute: It’s only working when it’s open.