Negative results are just what I want. They’re just as valuable to me as positive results. I can never find the thing that does the job best until I find the ones that don’t.

There is a better way for everything. Find it.

Every wrong attempt discarded is another step forward

To my mind the old masters are not art; their value is in their scarcity.

Being busy does not always mean real work.

I am afraid of radium and polonium ... I don't want to monkey with them.

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