Time is really the only capital that any human being has, and the only thing he can't afford to lose.
Thomas A. EdisonA 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. EdisonWhen I have eliminated the ways that will not work, I will find the way that will work.
Thomas A. Edison