I’ve always believed that a person is smart. It’s people that are stupid.

I've always felt that kids are really smart.

The difference between stupid and intelligent people – and this is true whether or not they are well-educated – is that intelligent people can handle subtlety.

You're a genius, you know that?"
"I've always thought so, myself.

The difference between stupid and intelligent people — and this is true whether or not they are well-educated — is that intelligent people can handle subtlety. They are not baffled by ambigous or even contradictory situations — in fact, they expect them and are apt to become suspicious when things seem overly straightforward.

Smart people learn from everything and everyone, average people from their experiences, stupid people already have all the answers.

Stupidity is much the same all the world over. A stupid person's notions and feelings may confidently be inferred from those which prevail in the circle by which the person is surrounded. Not so with those whose opinions and feelings are an emanation from their own nature and faculties.

Human beings can always be relied upon to assert, with vigor, their God-given right to be stupid.

The difference between being smart and being wise is that a smart person thinks he knows all the answers while a wise person is comfortable knowing he doesn’t.

Intelligent individuals learn from every thing and every one; average people, from their experiences. The stupid already have all the answers.

A smart person knows how to talk. A wise person knows when to be silent.

All humans are stupid, but the smarter ones at least have a handle on their own ignorance.

I’m so smart that I make everyone around me smarter. I do this by being dumber than everybody.

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.