If I asked 100 self-made millionaires...

[mrmr]

... for the secret to their success (or read the 100 most popular business/entrepreneurial books looking for the same kind of information), I'm sure I'd get 100 different answers.

My (superficial) understanding/assumption is that these self-help business books are mostly either 1. scams or 2. one particular person's success story, with no serious reason to believe that that particular formula for (their) success is The formula for success, or will work in other circumstances, or indeed will work again at all in any circumstances.

However, I wonder, if I asked those 100 people or read those 100 books, what answers would be common to all of them? Or maybe 95% of them?