Results! Why, man, I have gotten a lot of results. I know several thousand things that won't work.

We haven't failed. We now know a thousand things that won't work, so we are much closer to finding what will.

Genius is one percent inspiration and ninety-nine percent perspiration. As a result, a genius is often a talented person who has simply done all of his homework.

Success depends on how many experiments you can fit into 24 hours

Everything comes to those who hustle while they wait.

It is astonishing what an effort it seems to be for many people to put their brains definitely and systematically to work.

My mother was the making of me. She was so true and so sure of me, I felt that I had someone to live for - someone I must not disappoint. The memory of my mother will always be a blessing to me.