What really matters

nostalgia is the enemy of progress

Hold on tightly, but let go lightly. Nearly everything can be replaced. And if it can’t be replaced, celebrate its existence instead of fretting over its loss.

"Nothing you love is lost. Not really. Things, people—they always go away, sooner or later. You can't hold them, any more than you can hold moonlight. But if they've touched you, if they're inside you, then they're still yours. The only things you ever really have are the ones you hold inside your heart."

(Elementary school teacher and author Bruce

In the end, only three things matter: how much you loved, how gently you lived, and how gracefully you let go of things not meant for you.” -Jack Kornfield