A quote from Gabriel Marcel which I came across in Richard Kearney's Strangers, Gods and Monsters unreferenced and just had to track down:
Its from Homo Viator: Introduction to a Metaphysic of Hope:
"All then prepares us to recognize that despair is in a certain sense the consciousness of time as closed or, more exactly still, of time as a prison- whilst hope appears as piercing through time; everything happens as though time, instead of hedging consciousness around, allowed something to pass through it. It was from this point of view that I previously drew attention to the prophetic character of hope. Of course one cannot say that hope sees what is going to happen: but it affirms as if it saw. One might say that it draws its authority from a hidden vision of which it is allowed to take account without enjoying it.
We might say again that if time is in its essence a separation and as it were a perpetual splitting up of the self in relation to itself, hope on the contrary aims at reunion, at recollection, at reconciliation: in that way, and in that way alone, it might be called a memory of the future."
Michael Uebel would, I think, like this idea of hope as a reunion, a recollection, and a reconciliation which gives to the future a positive quality that sometimes the present and the past have difficulty in revealing. Marcel makes very clear here how an ethic of hope embraces the future.