Our greatest weakness lies in giving up.

The beauty of a great idea lies in the art of using it.

I am a vegetarian as well as a passionate anti-alcoholic, because I can thus make better use of my brain.

The first requisite for success is to develop the ability to focus.

Genius is one percent inspiration, ninety-nine percent perspiration.

I have a peculiar theory about radium, and I believe it is the correct one. I believe that there is some mysterious ray pervading the universe that is fluorescing to it. In other words, that all its energy is not self-constructed but that there is a mysterious something in the atmosphere that scientists have not found that is drawing out those infinitesimal atoms and distributing them forcefully and indestructibly.

I'll try anything...I'll even try Limburger cheese!