I deliberately try not to fill my calendar. I choose not to say Yes to everything. For to do so would make me too busy, and I think, less effective at what my goals are. I always want to have some margin of my time in reserve, time I’m free to spend in any way I choose, including doing almost nothing at all. I’m free to take detours. I’m open to serendipity. Some of the best thinkers throughout history had some of their best thoughts while going for walks, playing cards with friends, little things things that generally would not be considered the hallmarks of busy people. It’s the ability to pause, to reflect, and relax, to let the mind wander, that’s perhaps the true sign of time mastery, for when the mind returns it’s often sharper and more efficient, but most important perhaps, happier than it was before.