Clerical celibacy

Clerical celibacy is treated as a cultural rule whose success may serve the replication of ideas rather than the reproduction of genes. In the book’s account of memes, it illustrates how a practice can persist because it aids the spread of a religious tradition, even when the same practice would be disadvantageous under genetic selection. The explanation is explicitly conditional: its proposed benefit depends on whether marriage weakens a priest’s capacity to influence others.

A Cultural Replicator’s Advantage

The book distinguishes the interests of genes from those of memes, which spread through human brains by imitation and communication. A meme’s success is measured by its persistence and spread in the cultural environment, not by whether it increases the number of genes carried by its human transmitters. On that account, celibacy can be successful as a meme even though it is not, in ordinary circumstances, a successful genetic trait.

The example begins with a proposed condition: suppose marriage occupies enough of a priest’s time and attention to weaken his influence over his flock. If the meme for celibacy is transmitted through that influence, then a celibate priest could devote more effort to passing it on. Under this hypothesis, celibacy would have greater survival value in the meme pool than the meme for marriage. The book notes that this rationale has been advanced as an official reason for enforcing clerical celibacy, while presenting the causal account as a supposition rather than an established universal explanation.

The Contrast with Genetic Selection

The contrast turns on what is being replicated. A gene for celibacy would generally be expected to fail in the gene pool, since its bearer would not pass it on through ordinary reproduction; the book allows only special circumstances, such as those found among social insects, as exceptions. A celibacy meme, by contrast, can spread through teaching and example without its human transmitters reproducing.

This difference makes the practice an example of possible conflict between cultural and genetic interests. The same attribute can hinder the propagation of genes while supporting the transmission of a meme. The argument does not require celibacy to benefit the priest’s genes or to be consciously designed for the meme’s advantage: it proposes that a cultural trait may persist when it helps the ideas associated with it to be copied.

Place in the Meme Complex

Clerical celibacy is described not as an isolated rule but as a minor partner in a larger complex of mutually assisting religious memes. The book compares such co-adapted meme complexes with co-adapted gene complexes: elements can become associated because their interaction helps each persist. Celibacy’s proposed role is therefore institutional and transmissive, linked to the priest’s capacity to influence a congregation and to the wider religious tradition carried through speech, writing, and personal example.

The example also clarifies the limits of the book’s analogy between genes and memes. The language of a meme’s survival value describes differential cultural propagation, not conscious purpose or moral worth. Clerical celibacy matters to the argument because it shows how cultural selection may favor a practice for its effect on transmission even when that practice runs against the ordinary reproductive interests of the people who embody it.