Blake Mycoskie, founder, chief shoe giver of TOMS:

"In my 20s I wish I knew that the best advice for any person is to follow their passion as opposed to chasing money. I've seen time and time again that the people who foster their true passions and true callings are the ones that end up the most successful.

"It's hard in your 20s not to worry about money, but to focus on making sure you do something you love. Today, I feel like every time I've made a decision at TOMS that I'm passionate about and improves someone's life, the company grows and makes more money."