Work On Yourself Not On Your Job

Jim Rohn (Emanual James Rohn) was an American entrepreneur, author and motivational speaker.
After spending only one year in college he left to work as human resource manager in Sears.
Later he commonly gave seminars through various personal development. Even conducted seminars regarding Standar Oil (Company owned by John D. Rockerfeller).
He was also a coauther of the novel "Twelve Pillars." He was also the author of "The Power of Ambition", "Take Chare of Your Life", and "The Day that Turn Your Life Around".
Jim Rohn was also the mentore of Tony Robbins.