I think this sums most of them up. Stupid people have lots of...

I think this sums most of them up.

Stupid people have lots of problems. They mess up, foul up, and screw up. In a world in which intelligence is adaptive, stupid people obtain less value, and they suffer the consequences. To combat stupidity, society has invented educationand training. Used wisely, education and training can build skills and even raise intelligence itself. A barrier to this course of action is that many, perhaps most, of the stupid people fail to understand that they are stupid. Like others, they believe that they are better than average. Except that in their case, this belief is grossly in error, and it keeps them from taking remedial action.