Or 'Some are born great, some achieve greatness, and some have greatness thrust upon them' -- Shakespeare
There are many paths to greatness. The article mentions a lot of hurdles and racism that he had to overcome. But those are specific to him. I'm sure there are plenty 'great' people who haven't suffered.
> One of my great advantages is that I have very low expectations.
I don't think people with low expectations start companies. Certainly those with low expectations don't rise and achieve greatness.
In essence, he is saying people should be resilient and try to persevere through hard times. The rest are just fluff to fill time.
But even with resilience and perseverance, you aren't guaranteed success. It also takes a bit of luck. Being at the right place at the right time. There isn't a magic formula to be successful. And there are only X number of billionaires the economy can suppport...