Hope is our dearest possession--easy to come by when we're small, harder and harder to find as we get older. And though it seems easier to give up, to give in to pessimism and the so-called reality born of experience, it isn't. It isn't easier to live without hope. Yes, of course we'll meet with disappointment, but wouldn't it be better for our health *not* to assume the worst? Prepare, certainly, but not out of fear or expectation, but out of personal responsibility and common sense.
But keep hope. Without it we will flounder and flail and become something substantially less than human.