Why do smart people exist, if not to figure out convoluted problems?

The fundamental cause of the trouble is that in the modern world the stupid are cocksure while the intelligent are full of doubt.

It's important to be smart, but it's also important to be active with your intelligence. The more you sit around over-thinking things, the more trouble you get into.

We are just too busy trying to appear smart to realize how intelligent we actually are.

Oh, yes. I'm terribly smart. Wouldn't it have been nice... to be intelligent?

If you ain't smart, diligence can solve it.