It is needless to say that women make the most patient as well as the most dangerous pickpockets.

My Brain is the key that sets me free.

The secret of showmanship consists not of what you really do, but what the mystery-loving public thinks you do.

Magic is the sole science not accepted by scientists, because they can't understand it.

I do not believe that ghosts or spirits exist.

I think that in a year I may retire. I cannot take my money with me when I die and I wish to enjoy it, with my family, while I live. I should prefer living in Germany to any other country, though I am an American, and am loyal to my country.

Keep up your enthusiasm! There is nothing more contagious than exuberant enthusiasm.