There's physical adversity, that if you are someone that likes exercise like I do, I exercise everyday. When you exercise, there's pain involved and so you're putting yourself through adversity in that situation. It's never totally pleasurable and there are moments where it's kind of boring or painful and you know that in doing that, you're making your mind and body tougher and more resilient. So must be able to deal with the boredom that happens in life.

If you are unsure of a course of action, do not attempt it. Your doubts and hesitations will infect your execution. Timidity is dangerous: Better to enter with boldness. Any mistakes you commit through audacity are easily corrected with more audacity. Everyone admires the bold; no one honors the timid.

The pyramid would start at the bottom: you don't know who you are or what you're intended to do in life. And so, the X factor - the ingredient that will make you powerful, that will make you successful is your energy and drive and your tenacity. If you've got that, there's nothing in the world that's going to stop you.

Never take your position for granted and never let any favors you receive go to your head.

People who are reading my books, or who are thinking about it, have some general idea about the concept of strategy. They're better off than somebody that has none. So I would never say it's useless.

Everything changes. This is the key to feeling powerful, but also to being creative in the world.

You can't disengage yourself from that game if you are completely unaware of what people out there might be doing, you're just going to be tripped up, you're going to find yourself continually at a disadvantage.