To Arthur Tisch
Rome. May 1948
Science is neither a method nor a body of knowledge. It is a body of changing, learned opinion, aspiring to be true. There are certain facts about nature and history; our grasp of those facts is constantly changing.
From The Letters of George Santayana: Book Eight, 1948-1952. Cambridge, MA: The MIT Press, 2008.
Location of manuscript: Collection of Arthur Tisch, Palm Beach Gardens FL