Annie Dillard:
How we spend our days is, of course, how we spend our lives. What we do with this hour, and that one, is what we are doing. A schedule defends from chaos and whim. It is a net for catching days. It is a scaffolding on which a worker can stand and labor with both hands at sections of time.
This idea (and reality) has been one of the most challenging to impart to my kids as I’ve tried to equip them for their post-high school, young adult lives. They seem to be anti-planning/scheduling.