No great genius has ever existed without some touch of madness.

No great genius has ever existed without some touch of madness.

Patience is a necessary ingredient of genius.

Patience is a necessary ingredient of genius.

I have nothing to declare but my genius.

I have nothing to declare but my genius.

Genius develops in quiet places, character out in the full current of human life.

Genius develops in quiet places, character out in the full current of human life.

Everyone is a genius at least once a year. The real geniuses simply have their bright ideas closer together.

Everyone is a genius at least once a year. The real geniuses simply have their bright ideas closer together.

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

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

Genius does what it must, and talent does what it can.

Genius does what it must, and talent does what it can.

Genius . . . means the transcendent capacity of taking trouble.

Genius . . . means the transcendent capacity of taking trouble.

True genius sees with the eyes of a child and thinks with the brain of a genii.

True genius sees with the eyes of a child and thinks with the brain of a genii.