“Just the chemical symbols for the elements of carbon and iron, Elijah. Carbon is the basis of human life and iron of robot life. It becomes easy to speak of C/Fe when you wish to express a culture that combines the best of two on an equal but parallel basis."
"See fee. Do you write it with a hyphen? Or how?"
"No Elijah. A diagonal line between the two is the accepted way. It symbolizes neither one nor the other, but a mixture of the two, without priority.”
―
Isaac Asimov,
The Rest of the Robots
