“One extraordinary fiction of the Egyptian mythology was the supposed intervention of a masculo-feminine principle, to which was assigned the development of the embryo world, somewhat in the way of incubation. For the doctrine was, that when the first chaotic mass had been produced, in the form of an egg, by a self-dependent and eternal Being, it required the mysterious functions of this masculo-feminine demi-urgus to reduce the component elements into organized forms.”

Source: Ninety-Three

The Development Hypothesis (1852)
Context: The blindness of those who think it absurd to suppose that complex organic forms may have arisen by successive modifications out of simple ones becomes astonishing when we remember that complex organic forms are daily being thus produced. A tree differs from a seed immeasurably in every respect... Yet is the one changed in the course of a few years into the other: changed so gradually, that at no moment can it be said — Now the seed ceases to be, and the tree exists.

Source: 1930s, Sex and Temperament in Three Primitive Societies (1935), p. 280, cited in Perspectives in Cultural Anthropology (1987) by Herbert A. Applebaum, p. 141

As quoted in Hitler 1889-1936: Hubris, Ian Kershaw, Page iii.
Other remarks

Gesammelte Mathematische Werke (1876)

Preface
A Course of Lectures on Natural Philosophy and the Mechanical Arts (1807)

Das Ewig-Weibliche zieht uns hinan.
Act V, Heaven, last line
Faust, Part 2 (1832)

" Economic Myths and Public Opinion https://miltonfriedman.hoover.org/friedman_images/Collections/2016c21/AmSpectator_01_1976.pdf” The Alternative: An American Spectator vol. 9, no. 4, (January 1976) pp. 5-9, Reprinted in Bright Promises, Dismal Performance: An Economist’s Protest, New York: Harcourt Brace Jovanovich (1983) pp. 60-75

Source: Management and technology, Problems of Progress Industry, 1958, p. 23