"I have a peculiar horror of women's ear-rings."

"I do not marry, for I consider that for an inventor, marriage is a great obstacle."

"I do not rush into actual work. When I get an idea, I start at once building it up in my imagination."

"The idea of atomic energy is illusionary but it has taken so powerful a hold on the minds, that although I have preached against it for twenty-five years, there are still some who believe it to be rea…"

"Of all the frictional resistances, the one that most retards human movement is ignorance."