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Every great man has become great, every successful man has succeeded, in proportion as he has confined his powers to one particular channel.

Orison Swett Marden (2015). “ORISON SWETT MARDEN Premium Collection - Wisdom & Empowerment Series (18 Books in One Volume): Steps to Success and Power, How to Get What You Want, An Iron Will, Be Good to Yourself, Every Man A King, Keeping Fit, Prosperity – How to Attract It, Stepping-Stones To Fame And Fortune...”, p.2475, e-artnow
Every great man has become great, every successful man has succeeded, in proportion as he has confined his powers to one particular channel.