He is not only dull himself, but the cause of dulness in others.

He is not only dull himself, but the cause of dulness in others.

There is no sin except stupidity.

There is no sin except stupidity.

Never attribute to malice that which is adequately explained by stupidity.

Never attribute to malice that which is adequately explained by stupidity.

With various readings stored his empty skull,
Learn'd without sense, and venerably dull.

With various readings stored his empty skull,
Learn'd without sense, and venerably dull.

If Stupidity got us into this mess, then why can't it get us
out?"

If Stupidity got us into this mess, then why can't it get us
out?"

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

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

If you don't want a sarcastic answer, don't ask a stupid question.

If you don't want a sarcastic answer, don't ask a stupid question.

I find we are growing serious, and then we are in great danger of
being dull.

I find we are growing serious, and then we are in great danger of
being dull.

We are growing serious, and, let me tell you, that's the very
next step to being dull.

We are growing serious, and, let me tell you, that's the very
next step to being dull.