“A stupid person can make only certain, limited types of errors; the mistakes open to a clever fellow are far broader. But to the one who knows how smart he is compared to everyone else, the possibilities for true idiocy are boundless.”

“But clever people all make one mistake. They all think everyone else is stupid. And everyone isn't stupid. They just take a bit more time, that's all.”

“I never make stupid mistakes - only very, very clever ones.”

“The biggest mistake we can make is to think that we've figured the whole thing out. The people I know who are the greatest skeptics, who are least certain about how the world and the universe works, are also the most intelligent.... Absolute certainty is only for stupid people. It requires a certain intelligence for us to realize how little we actually know.”

“Only those who will risk going too far can possibly find out how far one can go.”

“...Ethan, but I'm certainly not the type of woman to just go home with two men whether I know them or not. It would be highly inappropriate, not to mention stupid.""And you're not stupid.""Not as far as I can tell"...”