Idealism Tropes

"Man is born a predestined idealist, for he is born to act. To act is to affirm the worth of an end, and to persist in affirming the worth of an end is to make an ideal."
Oliver Wendell Holmes

A few clues as to which end of the Sliding Scale of Idealism Versus Cynicism you are — or the characters think they are.

Contrast Cynicism Tropes. See also Hope Index and Knight In Shining Tropes.