They would be scattered over the community at large even it they escaped entire neutralization.

To prevent so disastrous a result nature implants a desire for resemblance, which desire man instinctively acts upon.
Complete compatibility of temperament is of course a thing not to be expected nor indeed to be desired, since it would defeat its own end by allowing no room for variation.

A fairly broad basis of agreement, however, exists even when least suspected.

This common ground of content consists of those qualities held to be most essential by the individuals concerned, although not necessarily so appearing to other people.
Sometimes, indeed, these qualities are still in the larvae state of desires.

They are none the less potent upon the man's personality on that account, for the wish is always father to its own fulfilment.
The want of conjugal resemblance not only works mediately on the child, it works mutually on the parents; for companionship, as is well recognized, tends to similarity.