" With the sole exception of President Bill Clinton, whose ‘bridge to the 21st century’ evoked the vision and optimism of other great Democratic presidents of the 20th century, such as FDR and John F. Kennedy, pessimism about America’s economic future has been the hallmark of modern progressivism. "
- Bernard L. Schwartz

In simple terms, the statement suggests that there has been a prevailing sense of pessimism among modern progressive thinkers regarding America's economic future, with one notable exception: President Bill Clinton’s optimistic vision for the country. This sentiment highlights how Clinton stood out from his contemporaries in his approach to addressing and envisioning the nation's economic challenges.

The deep meaning behind this statement reveals a broader historical context within American politics and leadership. It contrasts the generally pessimistic views of modern progressives with the optimism displayed by earlier progressive presidents such as Franklin D. Roosevelt (FDR) and John F. Kennedy, who were known for their forward-thinking visions and ambitious policies aimed at improving economic conditions and national morale. By mentioning Clinton specifically, the statement underscores how his "bridge to the 21st century" rhetoric echoed those of previous visionary leaders, thereby setting him apart from other modern political figures in terms of optimism and hope.

This quote is attributed to Bernard L. Schwartz, a prominent American business leader and philanthropist who has been known for his insightful commentary on politics and economics. His work often emphasizes the importance of forward-thinking leadership and the role it plays in shaping national economic policies and public sentiment.