There's only one thing that all the successful companies in the world have in common: None was started by one person.

Source: "Want to Help Someone? Shut Up and Listen!" TEDxEQChCh. Sep. 2012. Conference Presentation. Additional Information: The meaning of this quote is that in order to be successful, such as when starting a business, you need the help of other people. Without cooperation and teamwork, you will fail. The quote is from aid worker Ernesto Sirolli's 2012 TED Talk about how aid workers can achieve better results by learning how to listen to the people they are trying to help and by unleashing their own entrepreneurial spirit. Watch the full TED Talk here: Ernesto Sirolli - Want to Help Someone? Shut Up and Listen!