All the fifty years of conscious brooding have brought me no closer to answer the question, "What are light quanta?" Of course today every rascal thinks he knows the answer, but he is deluding himself.
Albert EinsteinA theory is the more impressive the greater is the simplicity of its premises, the more different are the kinds of things it relates and the more extended the range of its applicability.
Albert EinsteinThere is a driving force more powerful than steam, electricity and nuclear power: the will.
Albert Einstein