I owe as much of my success to an uncompromising obstinacy as to any original ideas.
Albert EinsteinBut nature did not deem it her business to make the discovery of her laws easy for us.
Albert EinsteinI owe as much of my success to an uncompromising obstinacy as to any original ideas.
Albert EinsteinBut nature did not deem it her business to make the discovery of her laws easy for us.
Albert Einstein