[21] La resurrezione, etc., p. 8: "Leonardo placed the study of nature as a precept to painting ... later the passion for study became dominating, he no longer wished to acquire science for art, but science for science' sake."
[22] For an enumeration of his scientific attainments see Marie Herzfeld's interesting introduction (Jena, 1906) to the essays of the Conference Florentine, 1910, and elsewhere.
[23] For a corroboration of this improbable sounding assertion see the "Analysis of the Phobia of a Five-year-old Boy," Jahrbuch für Psychoanalytische und Psychopathologische Forschungen, Bd. I, 1909, and the similar observation in Bd. II, 1910. In an essay concerning "Infantile Theories of Sex" (Sammlungen kleiner Schriften zur Neurosenlehre, p. 167, Second Series, 1909), I wrote: "But this reasoning and doubting serves as a model for all later intellectual work in problems, and the first failure acts as a paralyzer for all times."
[24] Scognamiglio 1. c., p. 15.
[25] Cited by Scognamiglio from the Codex Atlanticus, p. 65.
[26] Cf. here the "Bruchstück einer Hysterieanalyse," in Neurosenlehre, Second series, 1909.
[27] Horapollo: Hieroglyphica I, II. Μητἑρα δἑ γρἁφοντες ... γὑπα ζωγραφοὑσιυ
[28] Roscher: Ausf. Lexicon der griechischen und römischen Mythologie. Artikel Mut, II Bd., 1894-1897.—Lanzone. Dizionario di Mitologia egizia. Torino, 1882.
[29] H. Hartleben, Champollion. Sein Leben und sein Werk, 1906.
[30] "γὑπα δἑ ἁρρενα οὑ φασνγἑνεσθαι ποτε, ἁιλἁ φηλεἱας ἁπἁσας," cited by v. Römer. Über die androgynische Idee des Lebens, Jahrb. f. Sexuelle Zwischenstufen, V, 1903, p. 732.