Albert Einstein (; German: [ˈalbɛɐ̯t ˈʔaɪnʃtaɪn] ( listen); 14 March 1879 – 18 April 1955) was a German-born theoretical physicist who developed the theory of relativity, one of the two pillars of modern physics (alongside quantum mechanics). His work is also known for its influence on the philosophy of science. He is best known to the general public for his mass–energy equivalence formula E = mc2, which has been dubbed "the world's most famous equation". He received the 1921 Nobel Prize in Physics "for his services to theoretical physics, and especially for his discovery of the law of the photoelectric effect", a pivotal step in the development of quantum theory.
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Great spirits have always found violent opposition from mediocrities. The latter cannot understand it when a man does not thoughtlessly submit to hereditary prejudices, but honestly and courageously uses his intelligence and fulfills the duty to express the results of his thought in clear form.
Let me not be understood as saying that there are no bad laws, nor that grievances may not arise for the redress of which no legal provisions have been made. I mean to say no such thing. But I do mean to say that although bad laws, if they exist, should be repealed as soon as possible, still, while they continue in force, for the sake of example they should be religiously observed.