Each of these families is different in thousands of ways, from their ethnicities to their incomes to their sleepover policies. But we set out to find the ways they are the same.
In selecting candidates to study, we ignored siblings who do the same work in the same industry (like Venus and Serena Williams) and families that come from a great fortune or legacy (like the Trumps or the Kennedys). We looked for families in which all the siblings did well. And we defined success by leadership, service or achievement, not just fame or money alone. Of course, genetics plays a role for every family, but we focused on upbringing and sibling dynamics instead.
Time (sub required)
Photo of some of the common traits Time identified
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