The human race consists of the dangerously insane and such as are not.
Samuel Langhorne Clemens, 1835-1910
I was blessed with a strong arm and a weak mind.
A lot of times when you're around really, really smart people, you don't really understand them.
In all private quarrels the duller nature is triumphant by reason of dullness.
What a distressing contrast there is between the radiant intelligence of the child and the feeble mentality of the average adult.
Since it is seldom clear whether intellectual activity denotes a superior mode of being or a vital deficiency, opinion swings between considering intellect a privilege and seeing it as a handicap.
The world belongs to people with IQs of 120. Anything much greater or less amounts to a liability.
A mugwump is a person educated beyond his intellect.