The thing I lose patience with the most is the clock. Its hands move too fast

We have merely scratched the surface of the store of knowledge which will come to us. I believe that we are now, a-tremble on the verge of vast discoveries - discoveries so wondrously important they will upset the present trend of human thought and start it along completely new lines .

Until man duplicates a blade of grass, nature can laugh at his so called scientific knowledge.

I never knew I had an inventive talent until Phrenology told me so. I was a stranger to myself until then!

The reason a lot of people do not recognize opportunity is because it usually goes around wearing overalls looking like hard work.

I am proud of the fact that I never invented weapons to kill.

Great ideas originate in the muscles.