When you were young, you thought time was a burden, something to be discharged as fast as possible so you could be grown-up. But it was such a bait-n-switch—when you were an adult, you came to realize that minutes and hours were the single most precious thing you had.
This quote really hit home for me. I'm getting older and I remember my Dad always telling me "the older you get, the faster time goes by." So bittersweet.