I'm a huge fan of author Napoleon Hill. One of his 17 Principles of Success is that of the "Mastermind Alliance." "A mastermind alliance consists of two or more minds working actively together in perfect harmony toward a common definite objective. Through a mastermind alliance you can appropriate and use the full strength of the experience, training, and knowledge of others just as if they were your own. No individual has ever achieved success without the help and cooperation of others." - Napoleon Hill. My opinion is that any individual can achieve SOME success, but not to the level they are capable of if they DO NOT have a Mastermind Alliance. Great and massive success and accomplishments are only made if one has a Mastermind Group that they have access to.