“- see fee? what’s that? - just the chemical symbols for the elements 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 the 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.” (the caves of steel, isaac asimov)