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George Santayana Quotes about Knowledge

A man's feet should be planted in his country, but his eyes should survey the world.

"The Life of Reason: The Phases of Human Progress". Book by George Santayana, Chapter VII: Patriotism, 1905.

Nothing is so irrevocable as mind.

George Santayana, Marianne S. Wokeck, Martin A. Coleman, James Gouinlock (2011). “The Life of Reason or The Phases of Human Progress: Introduction and Reason in Common Sense, Volume VII, Book One”, p.95, MIT Press