What goes on inside the head of a 25-year-old billionaire entrepreneur?

Keep reading and they might tell you.

We combed through the interviews, speeches, and rants of the world’s most successful young entrepreneurs to find their best quotes. Some quotes will inspire you, others will inform you, and a couple might even just change the way you think about online business forever.

I’ve broken the quotes down into categories like Quotes About Risk and Practical Quotes, which you can view on the table contents to jump to whatever section of quotes you like.  The Internet’s brightest young entrepreneurial minds are talking on subjects from Simplicity to Social Media - and we would be fools not to listen.

Everybody on this list below started their company in their teens or early 20′s and they’ve all achieved wild success beyond their years. A few of the young entrepreneurs on the list’s age has crept into the early 30′s, but that’s still pretty young to be a CEO.

“I find it best to dive right in and learn the hard way.”

– Pete Cashmore, Mashable