Make it last.Save for a rainy day.Do you need it? Can you afford it? Can you do without it?Don't throw it out. We might need it someday.These are truisms handed down from members of the Greatest Generation - the ones who invented and built refrigerators, vacuum cleaners, rocket ships, calculators, and solar energy. They were into recycling and repurposing before those things even had a name.How did they become the people they were? What events shaped...