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" "There is no science of sociology. Perhaps there will be, some day, when a rigorous physics gives a finished science of colloidal chemistry and that leads in turn to a complete knowledge of biology, and from there to a definitive psychology. After that we may begin to know something about sociology and politics. Sometime around the year 5000 A.D., maybe—if the human race does not commit suicide before then.
Robert Anson Heinlein (7 July 1907 – 8 May 1988) was one of the most popular, influential, and controversial authors of science fiction of the 20th Century.
Biography information from Wikiquote
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Nothing of value is free. Even the breath of life is purchased at birth only through gasping effort and pain... The best things in life are beyond money; their price is agony and sweat and devotion... and the price demanded for the most precious of all things in life is life itself — ultimate cost for perfect value