We are paying for and even submitting to the dictates of an ever increasing, unceasingly spawning class of human beings who never should have been born at all-that the wealth of individuals and of state is being diverted from the development and the progress of human expression and civilization.

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.

The basic freedom of the world is woman's freedom.

Women of the working class, especially wage workers, should not have more than two children at most. The average working man can support no more and and the average working woman can take care of no more in decent fashion.

As a cause becomes more and more successful, the ideas of the people engaged in it are bound to change.

The most far-reaching social development of modern times is the revolt of woman against sex servitude. The most important force in the remaking of the world is a free motherhood.

We should not minimize the great outstanding service of Eugenics for critical and diagnostic investigations. It demonstrates ... that uncontrolled fertility is universally correlated with disease, poverty, overcrowding and the transmission of hereditable traits.