This is 10% luck, 20% skill, 15% concentrated power of will, 5% pleasure, 50% pain, and 100% reason to remember the name.
Of all places, that line is from a rap song. “Remember the Name” by Fort Minor. I love their breakdown of how you get to be successful–it’s pretty spot on, in my opinion. Here’s the rap, for those of you who like that sort of thing: