One is that the perfect garden can be created overnight, which it can't.
It is only the inadequacy of the criminal code that saves the hackers from very serious prosecution.
I view Linux as something that's not Microsoft - a backlash against Microsoft, no more and no less.
One of my most productive days was throwing away 1,000 lines of code.
When in doubt, use brute force.
A well installed microcode bug will be almost impossible to detect.