insanity quotes

Albert Einstein: 

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

Ambrose Bierce: 

Love: a temporary insanity, curable by marriage.

Bruce Feirstein: 

The distance between insanity and genius is measured only by success.

Henry Ward Beecher: 

No man is sane who does not know how to be insane on proper occasions.

Oliver Wendell Holmes, Sr.: 

Insanity is often the logic of an accurate mind overtasked.

Oscar Levant: 

There's a fine line between genius and insanity. I have erased this line.

Seneca: 

There is no great genius without some touch of madness.