"We first dug out sixteen thousand fluent speakers of the several Sirian dialects. Eliminating the females and children brought the number down to nine thousand. Then, step by step, we cut out the elderly, the infirm, the weak, the untrustworthy, the temperamentally unsuitable. We weeded out those too short, too tall, too fat, too thin, too stupid, too rash, too cautious, and so forth. We weren't left with many among whom to seek for wasps."
January 1, 1970
https://en.wikiquote.org/wiki/Eric_Frank_Russell