1.   However, with youthful if foolish optimism she had proudly assured him that she would find a solution to the problem.

2.   Democrats afflicted with a foolish optimism may view these initiative victories as a sign of an impending liberal majority.

3.   Foolish optimism solves a basic economic problem.

4.   The father, Bob, who has no arms or legs, bounces around with a pipe constantly stuck in his mouth and an endless store of foolish optimism.