The only really transitory aspects of life are the potentialities; but as soon as they are actualized, they are rendered realities at that very moment.
Book: Man's Search for Meaning
I found these words from Viktor Frankl so beautiful.
"The only really transitory aspects of life are the potentialities; but as soon as they are actualized, they are rendered realities at that very moment; they are saved and delivered into the past, wherein they are rescued and preserved from transitoriness.
For, in the past, nothing is irretrievably lost but everything irrevocably stored. Thus, the transitoriness of our existence in no way makes it meaningless. But it does constitute our responsibleness; for everything hinges upon our realizing the essentially transitory possibilities.
Usually, to be sure, man considers only the stubble field of transitoriness and overlooks the full granaries of the past, wherein he had salvaged once and for all his deeds, his joys and also his sufferings. Nothing can be undone, and nothing can be done away with. I should say having been is the surest kind of being."