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.

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

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

I am patient with stupidity but not with those who are proud of it.

I am patient with stupidity but not with those who are proud of it.

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

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

The wise understand by themselves; fools follow the reports of others

The wise understand by themselves; fools follow the reports of others

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.

Anything that is too stupid to be spoken is sung.

Anything that is too stupid to be spoken is sung.

It's too bad that stupidity isn't painful.

It's too bad that stupidity isn't painful.

It is better to keep your mouth shut and appear stupid than to
open it and remove all doubt.

It is better to keep your mouth shut and appear stupid than to
open it and remove all doubt.