Fruit of Knowledge
The Fruit of Knowledge, as opposed to the Fruit of Life which the Angels possess, is the Fruit which the Lilim possess.
During episode 12 Gendo Ikari states that "science is the power of man," possibly suggesting that the Fruit of Knowledge is man's ability to cogitate, using his knowledge of the universe to build the Evangelions, which Kozo Fuyutsuki says mankind was destined build during End of Evangelion.
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