Henri Poincaré·1908These sudden inspirations never happen except after some days of voluntary effort which has appeared absolutely fruitless. The role of this unconscious work in mathematical invention appears to me incontestable. Rest gives back to the mind its force and freshness.
Amos Tversky·1972The secret to doing good research is always to be a little underemployed. You waste years by not being able to waste hours.
Albert Camus·1940To have time was at once the most magnificent and the most dangerous of experiments. Idleness is fatal only to the mediocre.
