Hope, in this deep and powerful sense, is not the same as joy that things are going well, or willingness to invest in enterprises that are obviously headed for early success, but, rather, an ability to work for something because it is good, not just because it stands a chance to succeed. The more unpropitious the situation in which we demonstrate hope, the deeper that hope is. Hope is definitely not the same thing as optimism. It is not the conviction that something will turn out well, but the certainty that something makes sense, regardless of how it turns out. In short, I think that the deepest and most important form of hope, the only one that can keep us above water and urge us to good works, and the only true source of the breathtaking dimension of the human spirit and its efforts, is something we get, as it were, from “elsewhere.” It is also this hope, above all, which gives us the strength to live and continually to try new things, even in conditions that seem as hopeless as ours do, here and now.
– Vaclav Havel
To have faith means to dare, to think the unthinkable, yet to act within the limits of the realistically possible; it is the paradoxical hope to expect the Messiah every day, yet not to lose heart when he has not come at the appointed hour. This hope is not passive and it is not patient; on the contrary, it is impatient and active, looking for every possibility of action within the realm of real possibilities.
– Erich Fromm