I’m always afraid of failing. It’s great motivation to work harder. - Mark Cuban (@mcuban) http://startupquote.com/post/9987509525 http://startupquote.com/pos

I’m always afraid of failing. It’s great motivation to work harder. - Mark Cuban (@mcuban) http://startupquote.com/post/9987509525 http://startupquote.com/post/9987509525