In 1914, Thomas Edison's lab burned down, and years' worth of his work was destroyed. This could easily be described as the worst thing to happen to Edison, but the inventor instead chose to see it as an energizing opportunity that forced him to rebuild and re-examine much of his work. Edison reportedly said at the time: "Thank goodness all our mistakes were burned up. Now we can start again fresh."
"In a world that we don't control, tolerance is obviously an asset," Ryan Holiday, author of the forthcoming The Obstacle Is The Way, told The Huffington Post. "But the ability to find energy and power from what we don't control is an immense competitive advantage."