"I love walking in the woods, on the trails, along the beaches. I love being part of nature. I love walking alone. It is therapy. One needs to be alone, to recharge one's batteries."

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A reporter called on Edison to interview him about a substitute for lead in the manufacture of storage batteries that the scientist was seeking. Edison informed the man that he had made 20,000 experiments but none had worked. "Aren't you discouraged by all this waste of effort?" the reporter asked. Edison: "Waste! There's nothing wasted. I have discovered 20,000 things that won't work."

— Thomas A. Edison