Date: 2007

"And when and idea for additional information to throw into a discussion came into my head, it often evaporated when I was on the point of saying it."

— Engel, Howard (b. 1931)

Date: May 18, 2015

"'I have to be totally still.' Ideas come floating up 'like a bubble in liquid.' At that point, he goes into an excitable motor state, pacing or scribbling down ideas."

— Colapinto, John (b. 1958)