Awesome quote sir, what’s important to remember is that our failure’s , each and every mistake leads us one step closer to achieving our goals. That being the case, it makes no sense to give up when times get tough that’d be like quitting a race even though you’re winning just because you start to get winded, your shoelace comes undone, and someone yells “you suck!” from the side-line.
Keep going. Keep pushing. Never, ever, quit. Allow your failures to facilitate your success and don’t look back ever.