Ignorance is the toughest enemy of humans. It is most disastrous.

Obviously this person's a hazard. Stupid people are dangerous.

...there was an almost terrifying lack of intelligence in his eyes.

If stupidity got us in this mess, how come it can't get us out.

You looked a little bit smarter when your stupidity lessened a lot.

Stupidity is doomed,therefore, to cringeat every syllableof wisdom.

In other words, the more stupid one is, the more he thinks he knows.

It's not easy to kill a mountain goat. He thinks with his spine.

Wisdom simplifies the things; stupidity makes the things complicated!

Stupidity is not a behavior; it's a religion. One can die for it!

I'm fairly certain that YOLO is just Carpe Diem for stupid people.

Sometimes, to fix something, you need to completely ruin something else

Kate was never going to understand the extent to which men were stupid.

The two most common elements in the universe are Hydrogen and stupidity.

How stupid lovers can be! But if they were not, there would be no story.