Don't approach a goat from the front, a horse from the back, or a fool from any side.
I wouldn't recommend sex, drugs or insanity for everyone, but they've always worked for me.
If Stupidity got us into this mess, then why can't it get us out?
It is better to keep your mouth shut and appear stupid than to open it and remove all doubt.
It's good to know that if I behave strangely enough, society will take full responsibility for me.
It's great to be young and insane.
Mad, adj: Affected with a high degree of intellectual independence.
Never argue with a fool - people might not know the difference.
Only two things are infinite, the universe and human stupidity, and I'm not sure about the former.
Ordinarily he was insane, but he had lucid moments when he was merely stupid.
Sanity is a madness put to good uses.
Show me a sane man and I will cure him for you.
There was never a genius without a tincture of madness.
Truly great madness can not be achieved without significant intelligence.
What can you say about a society that says that God is dead and Elvis is alive?
What do you take me for, an idiot?
What garlic is to food, insanity is to art.
What sane person could live in this world and not be crazy?
You can pretend to be serious; you can't pretend to be witty.
You couldn't even prove the White House staff sane beyond resonable doubt.