The novel described a utopia organized by a eugenic religion, designed to breed fitter and smarter humans.

They argue that we need to close the 'genetic gap' by breeding enhanced humans who can stand toe-to-toe with whatever alien species we encounter.

I wonder if someone is breeding humans, as the Tassaliki claim.

It's easier to breed humans, my lord.

After all, if anybody really wanted to breed humans for eugenic purposes, current technology would already allow them to go a long way.

To solve the problem of world hunger, he tries to breed humans down to half their normal size.

Meanwhile Bengue bred humans and enjoyed himself hugely.

What sort of civilization could have bred humans without honor?

"If the puppeteers had wanted to breed humans for some trait..." He stopped.

The puppeteers, the cowards of the universe, having the gall to breed humans and kzinti like two strains of cattle!