The Magic of Leadership: Observations From 10 of the Most Successful People in BusinessA quest to understand how leadership decided the Super Bowl led to a trove of insights on this mysterious, admired trait.

Going intoSuper Bowl 50(thank you, NFL, for ditching Roman numerals), I had a hunch the Broncos would win. Even though the Panthers had an awe-inspiring, record-breaking quarterback inCam Newton, and even though Peyton Manning was throwingone of the worst seasons of his career, it just made sense to me that the more experienced team would win. And they did.

My friend, sitting on the couch across from me, was totally dejected at the outcome. "The Broncos defense is just too good," he lamented, munching sadly on the last slice of cold pizza. "The Panthers could have won if...nah, that defense was just too good."

What really struck me about Super Bowl 50 isn't so much that the Broncos won, but that they won despite Peyton Manning's awful play. He now ranks 4th all time forworst passer rating among quarterbacks who won the Super Bowl. Yet, despite his errors, his team won by a comfy margin (24 to 10).

This got me thinking about leaders. If you want an easy "morale of the story" takeaway, it's that the Broncos won because their leader didn'thaveto carry his team. He just had to be Peyton Manning, one of the oldest, more polarizing quarterbacks in the NFL and someone you either love or hate. In either case, someone you can be confident in because of his track record of getting to the Super Bowl.

This got me wondering. What, exactly, does it take to be a successful leader?

In an attempt to answer this question, I combed through 300+ quotes from business leaders on what it takes to be a leader. In order to qualify for my shortlist, the person in question couldn't be near the top of the current "richest people in the world" index (because you've probably read all their quotes already anyway), and they couldn't be non-leaders (i.e., academics or authors). I also wanted to share quotes that were "unexpected" in some way.

Here are 10 of the more interesting, thought-provoking quotes I stumbled upon:

Marc Andreessen

My goal is not to fail fast. My goal is to succeed over the long run. They are not the same thing. —Marc Andreessen, co-founder of Andreessen Horowitz.

Andrew Carnegie

No man will make a great leader who wants to do it all himself, or to get all the credit for doing it. - Andrew Carnegie

Arianna Huffington

Success is not a straight line, it's much more of a dance and being open to possibilities. -- Arianna Huffington

Ray Kroc

The quality of a leader is reflected in the standards they set for themselves. -- Ray Kroc, mastermind of McDonald's

Indra Nooyi

Just because you are CEO, don't think you have landed. Indra Nooyi, CEO of PepsiCo

Virginia Rometty

Your value will be not what you know; it will be what you share. -- Virginia Rometty, CEO of IBM

Sheryl Sandberg

领导is about making others better as a result of your presence, making sure that impact lasts in your absence. -- Sheryl Sandberg

Jack Welch

If you're a leader and you're the smartest guy in the room, you've got real problems. -- Jack Welch, former chairman/CEO of GE

Oprah Winfrey

You get in life what you have the courage to ask for. -- Oprah Winfrey, the "Queen of All Media"

Mark Zuckerberg

If you do the things that are easier first, then you can actually make a lot of progress. -- Mark Zuckerberg, co-founder of Facebook