- Before starting on a long and difficult task it's a good idea to have a clear condition under which you will quit. This will ensure that you don't persevere when there's no use of it. --- Persevering through difficulty is a competitive advantage for any traveler of a long road, but he suggested that knowing when to quit is such a big strategic advantage that every single person, before undertaking an endeavor, should enumerate conditions under which they should quit. The important trick, he said, is staying attuned to whether switching is simply a failure of perseverance, or astute recognition that better matches are available. - David Epstein in [[Range]]