The only method compatible with our notions of civilization and the race is to prevent the breeding of the unfit by sterilization and the deliberate guidance of the mating instinct. [...] The trend of opinion among eugenists is that we must make marriage more difficult. Certainly no one who is not a desirable parent should be permitted to produce progeny.
![The only method compatible with our notions of civilization and the race is to prevent the breeding of the unfit by sterilization and the deliberate guidance of the mating instinct. [...] The trend of opinion among](http://cdn.quoteddaily.com/images/nikola-tesla/the-only-method-compatible-with-our-notions-of-civilization-and-the-race-is-to-prevent-the-breeding-of-the-unfit.jpg)