“I've known entrepreneurs who were not great salespeople, or didn't know how to code, or were not particularly charismatic leaders. But I don't know of any entrepreneurs who have achieved any level of success without persistence and determination.”

American businessman, author and syndicated columnist

Harvey Mackay is an American businessman, author and syndicated columnist. He writes a weekly advice column for Universal Uclick and is known for career and motivational guidance. His column appears in more than 100 newspapers. He has written seven New York Times bestselling books, including three that reached number one, and he is a member of the National Speakers Association Council of Peers Award for Excellence Hall of Fame.