I think the greatest sin in the world is bringing children into the world that have disease from their parents, that have no chance to be a human being, practically. Delinquents, prisoners, all sorts of things just marked when they're born. That to me is the greatest sin - that people can - can commit.

Eugenics is ... the most adequate and thorough avenue to the solution of racial, political and social problems.

When motherhood becomes the fruit of a deep yearning, not the result of ignorance or accident, its children will become the foundation of a new race.

Through sex, mankind may attain the great spiritual illumination which will transform the world, which will light up the only path to earthly paradise.

The procreation of [the diseased, the feeble-minded and paupers] should be stopped.

The most serious charge that can be brought against modern benevolence is that it encourages the perpetuation of defectives, delinquents and dependents. These are the most dangerous elements in the world community, the most devastating curse on human progress and expression.

Like begets like. We gather perfect fruit from perfect trees... . Abused soil brings forth stunted growths.