A vase from ancient Greek civilization depicts Apollo consulting the oracle of Delphi. G. Dagli Orti/DeAgostini Collection via Getty Images Most of us take big and small risks in our lives every day.

A statue of the Greek writer Thucydides sits outside the Austrian capital in Vienna. More than 2,000 years ago, he noted the friction that led to war between an established power, Sparta, and a rising ...

What's the most serious threat to the U.S. — a resurgent Russia, Islamic State terrorism, a nuclear Iran? Maybe it's none of the above. It could... From Ancient Greece, Lessons On The Risk Of A Modern ...