"Attitude" would be dedicating your work to satisfying the desire of the customer. "Knowledge" would be your ability to economically execute on that. "Luck", go

"Attitude" would be dedicating your work to satisfying the desire of the customer. "Knowledge" would be your ability to economically execute on that. "Luck", good or at least not bad, and "wealth", enough to execute with until you are successful, would be the necessary third and fourth pieces of that "how to succeed". ... That's my interpretation of the conventional wisdom.