Einstein had more than one valid theory to move society along. He jotted on a cocktail napkin, "A calm and modest life brings more happiness than the pursuit of success combined with constant restlessness." He gave this to a bell-hop as a tip. This theory of happiness has merit equal to his theory of relativity in my opinion. This napkin combined with another one also signed by Albert Einstein "Where there is a will there is a way".... more great advice for mitigating climate sold at auction for 1.8 million.