Main value of why she/her family is successful:<p>First, they "apply themselves with [intense] enthusiasm and energy."<p>Second: they "define with extraordinary realism their area of special competence and act decisively on all matters within it."<p>Third: they "ignore even the most enticing propositions failing outside of that area of special competence."<p>Finally: they "unfailingly behave in a high-grade manner with everyone they deal with."