Why should he feel more for that child, to whom he was bound by nothing but a single improvident night, than for any other? He would be scrupulous about paying support; he just didn't want anybody making him fight for his son in the name of paternal sentiments!

But each time Tomas was supposed to see him, the boy's mother found an excuse to keep him away. He soon realized that bringing them expensive gifts would make things a good deal easier, that he was expected to bribe the mother for the son's love. He saw a future of quixotic attempts to inculcate his views in the boy, views opposed in every way to the mother's. The very thought of it exhausted him. When, one Sunday, the boy's mother again canceled a scheduled visit, Tomas decided on the spur of the moment never to see him again.

He lived a scant two years with his wife, and they had a son. At the divorce proceedings, the judge awarded the infant to its mother and ordered Tomas to pay a third of his salary for its support. He also granted him the right to visit the boy every other week.

Needless to say, he found no sympathizers. His own parents condemned him roundly: if Tomas refused to take an interest in his son, then they, Tomas's parents, would no longer take an interest in theirs. They made a great show of maintaining good relations with their daughter-in-law and trumpeted their exemplary stance and sense of justice.

To ensure that erotic friendship never grew into the aggression of love, he would meet each of his long-term mistresses only at intervals. He considered this method flawless and propagated it among his friends: The important thing is to abide by the rule of threes. Either you see a woman three times in quick succession and then never again, or you maintain relations over the years but make sure that the rendezvous are at least three weeks apart.

Thus in practically no time he managed to rid himself of wife, son, mother, and father. The only thing they bequeathed to him was a fear of women. Tomas desired but feared them. Needing to create a compromise between fear and desire, he devised what he called erotic friendship. He would tell his mistresses: the only relationship that can make both partners happy is one in which sentimentality has no place and neither partner makes any claim on the life and freedom of the other.

It was Sabina he turned to when he needed to find a job for Tereza in Prague.

The rule of threes enabled Tomas to keep intact his liaisons with some women while continuing to engage in short-term affairs with many others. He was not always understood. The woman who understood him best was Sabina. She was a painter. The reason I like you, she would say to him, is you're the complete opposite of kitsch. In the kingdom of kitsch you would be a monster.

Following the unwritten rules of erotic friendship, Sabina promised to do everything in her power, and before long she had in fact located a place for Tereza in the darkroom of an illustrated weekly. Although her new job did not require any particular qualifications, it raised her status from waitress to member of the press. When Sabina herself introduced Tereza to everyone on the weekly, Tomas knew he had never had a better friend as a mistress than Sabina.