Dedicated to the memory of MY FATHER. For if I had not believed that he would have wished me to give such help as I could toward making his life’s work of service to mankind,...

If we cut up beasts simply because they cannot prevent us and because we are backing our own side in the struggle for existence, it is only logical to cut up imbeciles, criminals, enemies, or...

The year 2100 will see eugenics universally established. In past ages, the law governing the survival of the fittest roughly weeded out the less desirable strains. Then man’s new sense of pity began to interfere...

The world today has 6.8 billion people. That’s heading up to about nine billion. Now if we do a really great job on new vaccines, health care & reproductive health services, we could LOWER that...

Darwinism by itself did not produce the Holocaust, but without Darwinism… neither Hitler nor his Nazi followers would have had the necessary scientific underpinnings to convince themselves and their collaborators that one of the worlds...

Two imbecile parents, whether related or not, have only imbecile offspring.

It is worth remembering one of the important lessons of the Buck story: a small number of zealous advocates can have an impact on the law that defies both science and conventional wisdom.

I could show fight on natural selection having done and doing more for the progress of civilization than you seem inclined to admit. Remember what risk the nations of Europe ran, not so many centuries...

Beware of more powerful weapons. They often inflict as much damage to your soul as they do to you enemies.

It is cold anarchy to say that all men are to meddle in all men’smarriages. It is cold anarchy to say that any doctor may seize andsegregate anyone he likes. But it is not anarchy...

All that is mererationalism; the superstition (that is the unreasoning repugnanceand terror) is in the person who admits there can be angels butdenies there can be devils. The superstition is in the person whoadmits there...

The thing that really is trying to tyrannize through government is Science. The thing that really does use the secular arm is Science. And the creed that really is levying tithes and capturing schools, the...

Of all the problems which will have to be faced in the future, in my opinion, the most difficult will be those concerning the treatment of the inferior races of mankind.

My firm conviction is that if wide-spread Eugenic reforms are not adopted during the next hundred years or so, our Western Civilization is inevitably destined to such a slow and gradual decay as that which...