“Each woman who lives in the light of eternity can fulfill her vocation, no matter if it is in marriage, in a religious order, or in a worldly profession.”

Interviewed in Paris Review, Summer 1955; reprinted in Malcolm Cowley (ed.) Writers at Work (New York: Viking Press, 1959) p. 146.

Source: Venus in Furs

Life Without and Life Within (1859), The One In All

Essays on Woman (1996), The Ethos of Woman's Professions (1930)

Source: Ce que le jour doit à la nuit

Physics and Philosophy (1958)
Context: In the philosophy of Democritus the atoms are eternal and indestructible units of matter, they can never be transformed into each other. With regard to this question modern physics takes a definite stand against the materialism of Democritus and for Plato and the Pythagoreans. The elementary particles are certainly not eternal and indestructible units of matter, they can actually be transformed into each other. As a matter of fact, if two such particles, moving through space with a very high kinetic energy, collide, then many new elementary particles may be created from the available energy and the old particles may have disappeared in the collision. Such events have been frequently observed and offer the best proof that all particles are made of the same substance: energy. <!-- p. 71

Source: The Science of Rights 1796, p. 406

Source: Middlemarch