This was going through my head while I was in the shower.......

more or less. It's the chorus of a Weird Al song: (for the full lyrics go here)

Everything you know is wrong
Black is white, up is down and short is long
And everything you used to think was so important
Doesn't really matter anymore
Because the simple fact remains that

Everything you know is wrong
Just forget the words and sing along
All you need to understand is
Everything you know is wrong
Everything you know is wrong