There has never been any great genius without a spice of madness.
[Lat., Nullum magnum ingenium sine mixtura dementiae read more

There has never been any great genius without a spice of madness.
[Lat., Nullum magnum ingenium sine mixtura dementiae fuit.]

It is a common calamity; at some one time we have all been mad.
[Lat., Id commune malum; semel read more

It is a common calamity; at some one time we have all been mad.
[Lat., Id commune malum; semel insanivimus omnes.]

I can calculate the motion of heavenly bodies but not the madness of people.

I can calculate the motion of heavenly bodies but not the madness of people.

The alleged power to charm down insanity, or ferocity in beasts,
is a power behind the eye.

The alleged power to charm down insanity, or ferocity in beasts,
is a power behind the eye.

There is a thin line between genius and insanity. I have erased this line.

There is a thin line between genius and insanity. I have erased this line.

O, hark! what mean those yells and cries?
His chain some furious madman breaks;
He comes--I see read more

O, hark! what mean those yells and cries?
His chain some furious madman breaks;
He comes--I see his glaring eyes:
Now, now, my dungeon grate he shakes.
Help! Help! He's gone!--O fearful woe,
Such screams to hear, such sights to see!
My brain, my brain,--I know, I know
I am not mad but soon shall be.

He appears mad indeed but to a few, because the majority is
infected with the same disease.
[Lat., read more

He appears mad indeed but to a few, because the majority is
infected with the same disease.
[Lat., Nimirum insanus paucis videatur, eo quod
Maxima pars hominum morbo jactatur eodem.]

Insanity: doing the same thing over and over again and expecting
different results.

Insanity: doing the same thing over and over again and expecting
different results.

Insanity is often the logic of an accurate mind overtaxed.

Insanity is often the logic of an accurate mind overtaxed.