Subsequent to Roosevelt's speech, he and his New Deal colleagues gave us policies & infrastructure that served as the backbone for our post-World War II economic expansion, causing the middle-class to grow like never before or since.
In the past 30-40 years, however, we have turned away from New Deal policies & principles and have, instead, embraced trickle-down economics.
Today, there are 23.5 million Americans who wish they had a full-time job but can't find one, wages are stagnant or declining, and the middle-class is shrinking. But amazingly, millions of Americans are clamoring for more trickle-down economics by, for example, standing ready to hand our entire Congress over to Republican and Tea Party politicians (see "Republican takeover of Senate appears more and more assured").
What a shame that, today, we have few policymakers cut from the same cloth as New Deal policymakers. And what a shame and that we are rejecting (or are oblivious to) historical lessons.