@danielmcclure on Twitter: ""The MOST IMPORTANT RULE (OF #ENTREPRENEURSHIP): Have a customer before you start your business." http://bit.ly/Wg9gyJ"

Last Updated: January 23, 2013

“The MOST IMPORTANT RULE (OF #ENTREPRENEURSHIP): Have a customer before you start your business.” http://bit.ly/Wg9gyJ

Source

https://twitter.com/danielmcclure/status/294173566067417088