Only one who devotes himself to a cause with his whole strength and soul can be a true master. For this reason mastery demands all of a person.
Albert Einstein (14 March 1879 – 18 April 1955) was a German-born theoretical physicist. He developed the theory of relativity, one of the two pillars of modern physics (alongside quantum mechanics). Einstein's work is also known for its influence on the philosophy of science.
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