Kate

“It is a theory of mine," I said, warming to my theme, "that we owe most of our great inventions and most of the achievements of genius to idleness―either enforced or voluntary. The human mind prefers to be spoon-fed with the thoughts of others, but deprived of such nourishment it will, reluctantly, begin to think for itself―and such thinking, remember, is original thinking and may have valuable results.”
― Agatha Christie, The Moving Finger