"Eternal vigilance is the price of knowledge."
— George Santayana

January 1, 1970

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AphoristsNovelists from the United StatesEssayists from the United StatesPoets from the United States19th-century poets from the United States
Original Language: English

Sources

p. 58

https://en.wikiquote.org/wiki/George_Santayana

p. 58