Self-awareness is currently one of the sexiest words in entrepreneurship, happiness, productivity, or anything that has to do with personal growth.

Almost every entrepreneur or thought leader says that self-awareness is one of the keys to personal success. While that may be true — it’s by no means a new concept.

Greek philosopher Aristotle, who lived between 384–322 BC, once said:

“Knowing yourself is the beginning of all wisdom.”

We get it, self-awareness (or knowing yourself) is important. But I’ve learned that it’s also one of the most difficult things that you can master in life.