In one work, this philoso
In one work, this philosopher identified matter, essence, spirit, and truth as the four characteristics of knowledge, and in another work, he argued that one title concept leads to the conclusion that a single instant of awareness is empty of concepts and that the other title concept is the irrational basis for knowledge claims. For 10 points, name this naturalist Spanish-American philosopher who wrote The Realms of Being and Skepticism and Animal Faith and is known for the saying "Those who cannot remember the past are condemned to repeat it."
In one work, this philosopher identified matter, essence, spirit, and truth as the four characteristics of knowledge, and in another work, he argued that one title concept leads to the conclusion that a single instant of awareness is empty of concepts and that the other title concept is the irrational basis for knowledge claims.
George {Santayana}