Hordes of people [are] born, who live, yet who have done absolutely nothing to advance the race one iota. Their lives are hopeless repetitions… Such human weeds clog up the path, drain up the energies and the resources of this little earth. We must clear the way for a better world; we must cultivate our garden.

No more children should be born when the parents, though healthy themselves, find that their children are physically or mentally defective.

Like the advocates of Birth Control, the eugenists, for instance, are seeking to assist the race toward the elimination of the unfit. Both are seeking a single end but they lay emphasis upon different methods.

It is ... marvellous ... to have a period of apparent fanaticism. No obstacle can discourage you. The single vision of your quest obscures defeat and lifts you over mountainous difficulties.

The real hope of the world lies in putting as painstaking thought into the business of mating as we do into other big businesses.

... it has always been the depth of my belief, my faith, or my love that was the mainspring of my behavior. When once I believed in doing a thing, nothing could prevent my doing it.

There is only one reply to a request for a higher birthrate among the intelligent, and that is to ask the government to first take the burden of the insane and feeble-minded from your back. [Mandatory] sterilization for these is the answer.