Time is a finite resource. Time is perhaps a newly defined, and the most important, form of capital we possess because we control it.
Also, how we spend our time on a daily (and nightly) basis is one way of measuring what we value.
Researching and writing a dissertation, raising a family, reading great works of literature, visiting the ill and frail, campaigning for elected office, helping a stranger with directions, thinking creatively and sharing the results . . . even taking a well-deserved nap . . . all require time.
Some things we do take a lot of time. Instead of saying I wish had more time, why not say, how will I be more intentional with my time.
Time matters.