Add Yahoo as a preferred source to see more of our stories on Google. Oliver Rossi / Stone via Getty Images Wisdom comes from life's experiences, and it's usually pretty hard-earned. We're all about ...

The word "philosophy" literally means "the love of wisdom," and wisdom is the overarching aim of philosophy, or, at least, ancient philosophy. In Plato's Lysis, Socrates tells the young Lysis that, ...