I think it's a dangerous thing for comedians to mature or-- too much. And my wife will tell you I'm doing a fantastic job of not maturing too much. - Jerry Seinfeld

There are many things we can point to as proof that the human being is not smart. The helmet is my personal favorite: the fact that we had to invent the helmet. Now, why did we invent the helmet? Well, because we were participating in many activities that were crackin' our heads. We looked at the situation. We chose not to avoid these activities, but to just make little plastic hats so that we can continue our head-crackin' lifestyles. The only thing dumber than the helmet is the helmet law, the point of which is to protect a brain that is functioning so poorly, it's not even tryin' to stop the cracking of the head that it's in!

I pretty much engage with funny people, or weird people, or, y'know, kind of "off" people. Anybody who's a little normal -- even just take, let's say, a normal actor or actress -- I'm lost. I got nothin'. I'm not curious; I'm not interested. You got a show? I don't care.

I'll tell you the greatest thing that I've ever achieved in my career: I was on the cover of Mad magazine. And of course, I'm saying "Hello Neuman."