HOW TO PROFIT BY ONE'S ENEMIES - Plutarch

Plutarch (46-119) was a Greek philosopher, historian, and biographer. He studied mathematics and philosophy at the Academy of Athens, the same institution studied by Plato, and dedicated himself to politics, achieving high public offices. Plutarch wrote hundreds of texts, among them Parallel Lives, which consists of a collection of 64 biographies of prominent Greek and Roman figures.

His work, "How to Profit from Your Enemies," teaches us that although they may harm us, our enemies can also ...