Consider a highly articulated differentiation of people into different classes of apparent trust. In Leo Tolstoy’s Anna Karenina, Count Vronsky’s code of social rules is probably well understood by all concerned, who therefore have differential grounds for expecting good or bad behavior from him. As Tolstoy (1949 [1874–76], 1.347) puts it, “The code categorically determined that though the card-sharper must be paid, the tailor need not be; that one may not lie to a man, but might to a woman; that one must not deceive anyone, except a husband; that one must not forgive an insult but may insult others, and so on.” Karenin therefore can be confident that Vronsky will be honorable in repaying a gambling debt but he cannot be confident that Vronsky will be honorable with his wife, Anna—and therein lies a long novel.

Russell Hardin, Trust and Trustworthiness, loc. 266