To do much clear thinking a person must arrange for regular periods of solitude when they can concentrate and indulge the imagination without distraction.
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.
Nearly every person who develops an idea works at it up to the point where it looks impossible, and then gets discouraged. That’s not the place to become discouraged.
