He later characterized Stanislaw Ulam was the "father" of the hydrogen bomb, and Edward Teller as its "mother," and himself as its "midwife."
彼は後に、スタニスラフ・ウラムが水素爆弾の「父」であり、エドワード・テラーをその「母」、そして自身を「助産婦」と表現した。