The absent-minded professor There are three variants of procrastination, depending on what you do instead of working on something: you could work on (a) nothing, (b) something less important, or (c) something more important. That last type, I'd argue, is good procrastination. That's the "absent-minded professor," who forgets to shave, or eat, or even perhaps look where he's going while he's thinking about some interesting question. His mind is absent from the everyday world because it's hard at work in another. Paul Graham, Good and bad procrastination procrastinationproductivity
Results of a search This book presents results of a search, not of what is academically called research. In addition to the dedication of this book, I should like to state that my students in color have taught me more color than have books about color. Josef Albers, Interaction of Color A Search for Structure teaching