Steve Jobs

Steven Paul Jobs was an American inventor, designer and entrepreneur who was the co-founder, chief executive and chairman of Apple Computer

 The phrase “Stay Hungry, Stay Foolish,” is an inspirational slogan mentioned by Apple founder Steve Jobs in 2005 at the Stanford Commencement
Stay Hungry Stay Foolish is a famous quote of American business magnate Steve Jobs which he originally took from last page of the Whole Earth Catalog published in October 1974. It features the stories of 25 MBAs from IIM Ahmedabad who left lucrative jobs to follow the rough road of entrepreneurship

Here's a timeline of Steve Jobs's life:

"If you want to be average, do what others do. If you want to be awesome, do what no one does."
– Alexander Den Heijer

If you have time, you should read more about this incredible human being on his Wikipedia entry.